Hot Springs in the United States

Are there hot springs in the United States?

Yes, more than 1,600. NOAA's list of US thermal springs counts 1,661 hot and warm springs, and most are in the West: Nevada (312), California (304) and Idaho (232) have the most. Outside the West, the notable ones are in the Appalachians, in Virginia and North Carolina, and in Hot Springs National Park in Arkansas.

They come in four broad kinds. Undeveloped springs on national forest and Bureau of Land Management land are often free but have no facilities. Rustic resorts like Strawberry Park in Colorado charge entry and may need a reservation. Town pools like Glenwood Springs are big, easy and family-friendly. And historic bathhouses, such as those on Bathhouse Row in Arkansas, pipe the water indoors.

Not every hot spring is a place to soak. Yellowstone's thermal features, including Mammoth Hot Springs, are look-only, and many springs on NOAA's list are on private land or too hot to touch. Every listing on this site says whether you can get in, what it costs and when we last checked.

Best hot springs in the United States

A cross-section of the country's best-known soaks, from free pools at the end of a hike to a national park bathhouse.

• Resort

  Strawberry Park Hot Springs

  Steamboat Springs, Colorado

  Four stone pools at 103–107°F beside a creek; cash only, and every visit needs a reservation.

• Public pool

  Glenwood Hot Springs Pool

  Glenwood Springs, Colorado

  A huge town pool off I-70: the Grand Pool runs 90–93°F and the therapy pool 104°F.

• Natural

  Goldbug Hot Springs

  Near Salmon, Idaho

  Free pools in a canyon at the end of a 2-mile hike with a steep finish; about 113°F at the source.

• Natural

  Umpqua Hot Springs

  Umpqua National Forest, Oregon

  Travertine pools at 110–112°F above the river, 0.3 miles up a steep trail; day-use fee, daylight only.

• Natural

  Fifth Water Hot Springs

  Diamond Fork Canyon, Utah

  Milky blue pools at 100–102°F below a waterfall, on a 4.5-mile round-trip hike; swimwear required.

• Natural

  Travertine Hot Springs

  Bridgeport, California

  Free pools on travertine ridges, a short walk from a 1-mile dirt road; temperatures differ a lot.

• Natural

  Remington Hot Springs

  Kern River, California

  Free volunteer-built tubs at 80–115°F on the riverbank, about 42 miles east of Bakersfield.

• Bathhouse

  Hot Springs National Park

  Hot Springs, Arkansas

  Water surfaces at about 143°F, too hot to soak in outdoors; bathe in it at the Buckstaff or Quapaw bathhouse. No entrance fee.

• View only

  Mammoth Hot Springs

  Yellowstone National Park, Wyoming

  Steaming travertine terraces you walk on boardwalks, open all year; soaking is not allowed.

Hot springs in the United States map

Our 9 top picks, with pin shapes showing the type. The full list is further down.

Famous hot springs in the United States

All 456 hot springs we list in the United States, A to Z, from wild pools on public land to resorts and bathhouses.

• Resort

  1000 Springs Resort, Idaho

  Indoor pool with lifeguards, 15 private tubs and Snake River camping.

• Public park

  Agua Caliente County Park, California

  County park in the Anza-Borrego Desert with three mineral pools and camping; seasonal.

• Spa motel

  Alameda's Hot Springs Retreat, Montana

  1930s spa motel with private in-room tubs and four outdoor tubs; day use April to October.

• Private

  Alvord Hot Springs, Oregon

  Two concrete pools on private land overlooking the Alvord Desert playa; paid entry.

• Private cabins

  Antero Hot Springs Cabins, Colorado

  Three historic cabins in Chalk Creek Canyon, each with a private hot spring pool.

• Private rental

  Aqua Hot Spring, Colorado

  Private cabin on Chalk Creek with its own geothermal pool, for up to six guests.

• Hotel

  Aqua Soleil Hotel and Mineral Water Spa, California

  95-room hotel with three pools and suites with private mineral pools.

• Natural

  Arizona Hot Springs, Arizona

  Pools in a slot canyon above the Colorado River below Hoover Dam; a moderate hike, closed May 15 to September 30.

• Hotel spa

  Arlington Resort Hotel & Spa, Arkansas

  Grand 1924 hotel at the head of Bathhouse Row, with a thermal bathhouse and mineral water rooms.

• Bathhouse

  Artesian Bath House and Trailer Court, New Mexico

  Bathhouse open since 1930 with eight private 108°F tubs, plus an RV park and massage.

• Public park

  Astoria Hot Springs, Wyoming

  Non-profit park on the Snake River with six mineral pools at 100–104°F; reservations recommended.

• Lodging

  Aura Soma Lava Hot Springs, Idaho

  Riverside lodging with an outdoor geothermal pool and spa services.

• Closed

  Austin Hot Springs, Oregon

  Dangerously hot springs on private land by the Clackamas River, with a long record of serious burns; not open to soak.

• Ranch

  Avalanche Ranch Cabins & Hot Springs, Colorado

  Ranch on the Crystal River with three tiered hot pools and cabins; book a soak ahead.

• Resort

  Avila Hot Springs, California

  Year-round resort with a 104°F mineral pool, waterslides and camping.

• Hotel

  Azure Palm Hot Springs, California

  Adults-only hotel with a large mineral pool and spa suites.

• Bathhouse

  Bagby Hot Springs, Oregon

  Cedar log tubs in a forest bathhouse at the end of a 1.5-mile trail; about $5 per person, no reservations.

• Natural

  Baker Hot Springs, Utah

  Free BLM tubs where you mix 180°F spring water with cold water, at the end of a 7-mile gravel road.

• Natural

  Baker Hot Springs, Washington

  Free 110°F pool in the forest, 0.3 miles from a rough forest road; clothing optional.

• Resort

  Banbury Hot Springs, Idaho

  Artesian outdoor pool and private tubs on the Snake River, with camping and kayak rentals.

• Retreat

  Bar M Ranch Hot Springs, Oregon

  Private retreat about 30 miles from Pendleton with a geothermal pool, by reservation.

• Bathhouse

  Baranof Warm Springs, Alaska

  Community bathhouse and natural pools beside a waterfall, reached by floatplane or boat and a short walk.

• View only

  Barnes (Frenchglen) Warm Springs, Oregon

  Warm pool on a short trail in a wildlife refuge, where soaking is not allowed.

• Backcountry

  Barth Hot Springs, Idaho

  140°F source on the Main Salmon River, reached on multi-day rafting trips.

• Spa

  Bashford's Hot Mineral Spa, California

  Seasonal spa, October to May, with six mineral tubs; day use about $15.

• Natural

  Basin Creek Hot Springs, Idaho

  Volunteer-built pools at 95–104°F along the Salmon River, fed by a hot seep.

• Public pool

  Baumgartner Hot Spring, Idaho

  Forest Service concrete pool at 101–110°F by a campground; May to September, with a day-use fee.

• Backcountry

  Bear Creek Hot Spring, Idaho

  Secluded pool in the Caribou-Targhee National Forest, a long hike of nearly 14 miles.

• Resort

  Bear Lake Hot Springs, Idaho

  Two untreated pools by the beach, with camping and water rentals; Memorial Day to Labor Day.

• Backcountry

  Bear Valley Hot Spring, Idaho

  Pools at about 104°F below a 130°F source, a 3.5-mile hike from Fir Creek Campground.

• Lodge

  Belknap Hot Springs, Oregon

  Lodge on the McKenzie River with two mineral pools sold by the hour; swimsuit required.

• RV resort

  Belmont Hot Springs, Utah

  RV park and resort with two warm mineral lakes at 97°F and 104°F; day use and scuba.

• Inn

  Benton Hot Springs, California

  Old mining town inn with 13 campsites that each have a private spring-fed tub.

• Closed

  Beulah Hot Springs, Oregon

  Active BLM spring near Beulah Reservoir where soaking is no longer possible.

• Spa

  Beverly Hot Springs Spa, California

  Korean-style spa in Los Angeles with mineral pools and separate areas for men and women.

• Natural

  Big Bend Hot Springs (Langford Hot Springs), Texas

  Pool of about 105°F in the foundation of a 1910 bathhouse by the Rio Grande, a short walk from the road; park fee.

• Natural

  Big Caliente Hot Springs, California

  Free concrete pool next to the parking area, with adjustable temperature; open 6am to 10pm.

• Honor box

  Big Medicine Hot Springs, Montana

  Mineral pool with $5 cash honor-system entry, open year-round from 9am to sundown; swimsuit required.

• Backcountry

  Big Smokey Hot Spring, Idaho

  Free 102°F pool on the South Fork Boise River, a 4-mile hike from Baker Creek Road.

• Ranch

  Bingham Hot Springs, Oregon

  93°F mineral pool on a 633-acre ranch in the Blue Mountains, open with an overnight or retreat booking.

• Natural

  Birdsie Warm Spring, Colorado

  Remote warm spring of about 86°F at nearly 9,000 ft in the San Juan Mountains.

• Natural

  Bishop Creek Hot Springs, Nevada

  Free 40-foot concrete pool in a canyon 12 miles north of Wells, reached on foot or by high clearance.

• Natural

  Black Rock Hot Springs, Nevada

  Pool on the Black Rock Desert playa with a small dock; 4WD and dry conditions only.

• Hotel

  Blackstone Hotsprings, New Mexico

  Small hotel with private in-room baths and walk-in sessions; no under-12s.

• Backcountry

  Blaney Meadows Hot Springs, California

  109°F pool in a meadow at 7,631 feet on the John Muir Trail.

• Closed

  Blue Mountain Hot Springs, Oregon

  Private spring near Prairie City that has been closed to the public since 2002.

• Natural

  Boat Box Hot Spring, Idaho

  A single metal tub fed by a hot pipe on the Salmon River, 3 miles from Stanley off Highway 75; free.

• Natural

  Bog Hot Springs, Nevada

  Long hot ditch with several pools below a 130°F source, on ranch land near the Oregon border.

• Closed

  Boiling River Hot Springs (Yellowstone), Wyoming

  Once a famous soak where a hot stream meets the Gardner River; closed since the 2022 floods.

• Natural

  Bonneville Hot Springs, Idaho

  Creekside rock pools and an old soaking shack with a cast-iron tub, a 0.4-mile walk from the campground.

• Resort

  Bonneville Hot Springs Resort & Spa, Washington

  Columbia Gorge resort with an indoor mineral pool, hot tub, sauna and spa; reopened in 2025.

• View only

  Borax Hot Springs, Oregon

  Geothermal observation site north of Fields where soaking is prohibited.

• Historic inn

  Boulder Hot Springs, Montana

  Alcohol-free 1910 spa inn with four geothermal pools, about 30 miles from Helena.

• Public pool

  Bowers Mansion Hot Springs, Nevada

  County park by an 1860s mansion with a geothermal-fed public pool and splash pad; summer season.

• Lodge

  Box Canyon Lodge, Colorado

  Ouray hotel with hot spring tubs on a mountainside deck, for overnight guests only.

• Backcountry

  Boy Scout Hot Springs, Arizona

  Free canyon pools reached by a long hike or by kayak on the Colorado River; no facilities.

• Public pool

  Bozeman Hot Springs, Montana

  Twelve pools from 59°F to 106°F plus dry and wet saunas, 8 miles west of Bozeman; open all year.

• Retreat

  Breitenbush Hot Springs, Oregon

  Off-grid retreat centre in old-growth forest with seven mineral pools and a sauna; reservations required, clothing optional.

• Public pool

  Broadwater Hot Springs & Fitness, Montana

  Seven outdoor pools, a fitness centre, sauna and poolside bar in Helena; open all year.

• Cabins

  Broadwing Farm Cabins, North Carolina

  Three cabins on an 85-acre farm, each with an outdoor tub filled from the farm's own well; two-night stays.

• Resort

  Brockway Springs Resort, California

  Lake Tahoe resort with a year-round geothermal pool.

• Natural

  Bronco Billy Hot Spring, Idaho

  Very hot roadside pool on the Banks-Lowman Highway.

• Natural

  Browns Creek Hot Spring, Idaho

  Hot water cascades down a cliff into pools by the Middle Fork Boise River; free.

• Natural

  Buckeye Hot Springs, California

  Free rock pools beside Buckeye Creek below a travertine grotto, a short scramble from the road.

• Closed

  Buckhorn Hot Mineral Wells, Arizona

  Historic bathhouse in Mesa that has been closed since 1999.

• Bathhouse

  Buckstaff Bathhouse, Arkansas

  Traditional thermal baths and spa treatments on Bathhouse Row, in continuous operation since 1912.

• Natural

  Bully Creek Hot Springs, Oregon

  Small free concrete pool near Vale with no facilities or signs.

• View only

  Bumpass Hell Trail, California

  Seasonal boardwalk trail past boiling pools and fumaroles in Lassen's largest hydrothermal area.

• Historic resort

  Burgdorf Hot Springs, Idaho

  Historic log pools and off-grid cabins north of McCall, by reservation; snowmobile access in winter.

• Motel

  Caliente Hot Springs Motel and Spa, Nevada

  Motel on US-93 with private soak rooms and in-room mineral baths, about 150 miles from Las Vegas.

• RV resort

  Caliente Springs Resort, California

  55-plus RV and tiny-home resort with four mineral pools.

• Resort

  Calistoga Motor Lodge and Spa, California

  Retro motor lodge with three geothermal pools, a spa and a restaurant.

• Resort

  Calistoga Spa Hot Springs, California

  Four geothermal pools at 80–104°F, mud baths and kitchenette rooms.

• Public pool

  Camas Hot Springs, Montana

  Tribal public park with a 105–107°F cement pool for about $5, plus camping; open all year.

• Plunges

  Camp Aqua Hot Springs, Montana

  Six chemical-free outdoor plunges with camping, cabins and tepees, about 80 miles from Missoula.

• Spa

  Camp Hot Wells, Texas

  Geothermal spa beside the ruins of the historic Hot Wells hotel, with private outdoor soaking suites and a bar.

• Public pool

  Carson Hot Springs, Nevada

  Carson City resort in use since 1849, with four outdoor pools and ten indoor tubs.

• Resort

  Carson Hot Springs Resort & Spa, Washington

  Historic 1901 resort in the Columbia Gorge with pools at 98–104°F, private tubs and a sauna.

• Resort

  Castle Hot Springs, Arizona

  Historic luxury resort about an hour from Phoenix; overnight guests aged 18 and over only.

• Public pool

  Challis Hot Springs, Idaho

  Two untreated mineral pools and riverside camping, run by Idaho State Parks; open all year.

• Resort

  Charlotte Hot Springs, Colorado

  Small hot springs retreat near Buena Vista with three mineral pools and gardens.

• Natural

  Chattanooga Hot Springs, Idaho

  Pool below a geothermal waterfall near Atlanta, reached by 4WD and a short, steep trail.

• Resort

  Chena Hot Springs Resort, Alaska

  Year-round resort 56 miles east of Fairbanks on a paved road, with an outdoor rock lake, indoor pool and northern lights viewing.

• Resort

  Chico Hot Springs, Montana

  Historic resort in Paradise Valley with two geothermal pools, lodging, dining and a day spa.

• Tubs

  Chief Shakes Hot Springs, Alaska

  Free Forest Service soaking tubs on the Stikine River, about 28 miles from Wrangell by boat.

• Resort

  Chinati Hot Springs, Texas

  Remote desert resort on 640 acres with cabins, a communal outdoor pool and private indoor tubs; overnight guests only.

• Private land

  Cofer Hot Springs, Arizona

  Springs on private land near Wikieup that are not open to the public.

• Natural

  Conundrum Hot Springs, Colorado

  Wilderness pools at 11,200 ft, an 8.5-mile hike in from near Aspen; overnight stays need a permit.

• Closed

  Corwin Hot Springs, Montana

  Site of a historic resort at Corwin Springs that is long gone; soak nearby at Yellowstone Hot Springs instead.

• Resort

  Cottonwood Hot Springs Inn & Spa, Colorado

  Laid-back mineral springs west of Buena Vista with stone pools, cabins and a sauna.

• Backcountry

  Council Mountain Hot Springs, Idaho

  Free pools in the Payette National Forest, a 4.5-mile moderate hike.

• Natural

  Cove Creek Hot Springs, Idaho

  Free roadside pools on the Salmon River about 9 miles from Stanley, with a vault toilet.

• Public pool

  Cove Warm Springs, Oregon

  Untreated 86°F outdoor pool open Memorial Day to Labor Day; swimsuit required.

• Natural

  Coyote Hot Spring, Idaho

  Free primitive pools at 100–104°F with views over the Snake River Valley.

• Natural

  Crab Cooker Hot Springs, California

  Raised BLM tub with an adjustable valve, at the end of a rough dirt road; free.

• Natural

  Crowley (Wild Willy's) Hot Spring, California

  Two free pools at 98–102°F at the end of a flat 0.3-mile boardwalk, with wide Sierra views.

• Resort

  Crystal Crane Hot Springs, Oregon

  Rustic resort 25 miles from Burns with a large mineral pond and private cedar bathhouses.

• Public pool

  Crystal Hot Springs, Utah

  Hot and cold mineral pools with waterslides north of Brigham City, open since 1901.

• Naturist resort

  Dakota Hot Springs, Colorado

  Clothing-optional hot springs near Penrose with a large outdoor pool and camping.

• Warm pond

  Dankworth Ponds Warm Springs, Arizona

  Artesian warm pond for wading and fishing in a state park unit south of Safford; day-use fee.

• Backcountry

  Dash Creek Hot Springs, Idaho

  Two pools at 106–110°F, a 4.2-mile hike from Boiling Springs Campground.

• Resort

  David Walley's Hot Springs Resort, Nevada

  Resort below the Sierra in Genoa, running since 1862, with five outdoor tubs at 98–104°F.

• Natural

  Deep Creek Hot Springs, California

  Pools by Deep Creek in the San Bernardino Mountains, a 2.5-mile hike; clothing optional, parking fee.

• Natural

  Deer Creek (Bigelow) Hot Springs, Oregon

  Small free pool in a fern grotto on the McKenzie River; best in summer and autumn; clothing optional.

• Resort

  Delight's Hot Springs Resort, California

  Four private bathhouses and an outdoor pool, with day passes and rooms.

• Inn

  Desert Hot Springs Inn, California

  Six-room historic inn with an 85°F pool; pet friendly.

• Hotel

  Desert Hot Springs Spa Hotel, California

  Hotel with eight mineral pools at 90–104°F and low-cost day passes.

• Naturist resort

  Desert Reef Hot Springs, Colorado

  Clothing-optional hot springs near Florence, fed by an artesian well more than 1,000 ft deep.

• View only

  Diana's Punch Bowl, Nevada

  Boiling spring in a travertine crater on private ranch land; far too hot to soak, and permission is needed.

• Natural

  Dirty Sock Hot Springs, California

  Free unmaintained concrete pool of about 93°F, with algae and a sulphur smell.

• Natural

  Double Hot Springs, Nevada

  Fenced boiling pools with a soaking trough beside them, across the playa; 4WD and dry weather needed.

• Resort

  Downata Hot Springs, Idaho

  Family resort with a geothermal pool, tubs, waterslides, cabins and yurts.

• Resort

  Dr. Wilkinson's Backyard Resort & Mineral Springs, California

  Calistoga resort since 1952, with three geothermal pools and mud baths.

• Guest ranch

  Drakesbad Guest Ranch, California

  Historic 1880s ranch in Lassen with a 96–103°F pool and meals included.

• View only

  Dripping Spring (Hot), Arkansas

  Walk-up hot spring in the national park where you can touch and taste the water; no soaking.

• Resort

  Dunton Hot Springs, Colorado

  Restored mining ghost town turned luxury resort, with hot springs and log cabins.

• Resort

  Durango Hot Springs, Colorado

  Large resort north of Durango with more than 30 outdoor pools and separate adult areas.

• Natural

  Dutch Frank Hot Spring, Idaho

  Riverside pools below a 149°F source on the Middle Fork Boise River Road; free.

• Natural

  Dyke Hot Springs, Nevada

  Remote spring with a 136°F source and little infrastructure.

• Public pool

  Easley Hot Springs, Idaho

  Seasonal geothermal pool and two tubs in the Sawtooth National Recreation Area; paid entry.

• Natural

  East Lake Hot Springs, Oregon

  Volcanic lakeshore pools reached by a short walk or boat, usable late summer and autumn only.

• Natural

  Easterday Hot Springs (Lucky Seven Hot Springs), Oregon

  Free BLM soaking creek below a 120°F source near McDermitt; high clearance needed.

• Natural

  Echo Rock Hot Springs, Oregon

  Free concrete pool on the Lake Owyhee shore, submerged when the reservoir is high in summer.

• Private

  Ecotopia Hot Springs, California

  Private sanctuary with five sulphur pools at 98–106°F, by reservation only.

• Resort

  El Dorado Hot Springs, Arizona

  Rustic desert resort west of Phoenix with communal clothing-optional pools, private tubs by the hour, camping and rooms.

• Hotel

  El Morocco Inn and Spa, California

  Moroccan-style 13-room hotel with a mineral pool and day use.

• Public pool

  Eldorado Springs Pool, Colorado

  Spring-fed swimming pool in Eldorado Canyon near Boulder, open since 1905, summer only.

• Resort

  Elkhorn Hot Springs, Montana

  Family-owned mountain resort since 1918, with two mineral pools, a Grecian sauna and cabins.

• Retreat

  Esalen Hot Springs, California

  Cliffside tubs above the Pacific, for overnight guests and workshop participants only.

• Private tubs

  Essence of Tranquility, Arizona

  Six private and communal tubs with a casita and camping; clothing optional in the private rooms.

• Public pool

  Evans Plunge Mineral Springs, South Dakota

  Spring-fed indoor and outdoor pool kept at about 87°F, with waterslides and a sauna; open all year.

• Resort

  Fairmont Hot Springs Resort, Montana

  Big resort with four mineral pools, a 350-foot waterslide, golf and 153 rooms.

• Resort

  Fairmont Sonoma Mission Inn & Spa, California

  Resort with five adults-only geothermal pools and a Roman-style bathhouse.

• Closed

  Fales Hot Springs, California

  Former roadside resort on private land, posted no trespassing and not open.

• Resort

  Faywood Hot Springs, New Mexico

  Outdoor pools at 95–110°F with clothing-optional areas, camping and cabins; reservations required.

• Natural

  Fifth Water Hot Springs, Utah

  Milky blue pools at 100–102°F below a waterfall, on a 4.5-mile round-trip hike; swimwear required.

• Lodge

  Fire Water Lodge, New Mexico

  Restored 1920s motor court with private mineral tubs at 105–108°F, for guests only.

• Seasonal

  Firehole River Swimming Area, Wyoming

  Geothermally warmed river swimming spot, usually open from mid-July; it stayed closed for the 2025 season.

• Backcountry

  Fish Creek Hot Springs (Iva Bell), California

  Pools at 96–104°F in the John Muir Wilderness, a 13-mile hike each way.

• Natural

  Fish Lake Valley Hot Well, Nevada

  Free county-managed tub at about 105°F, with a vault toilet, fire rings and camping.

• Natural

  Fisher Hot Springs, Oregon

  Free concrete pool by Lake Owyhee near Leslie Gulch; under the reservoir in summer.

• RV park

  Fountain of Youth RV Park, Wyoming

  Wyoming's largest mineral pool, 235 by 72 feet, at 95–105°F; day use available.

• RV resort

  Fountain of Youth Spa RV Resort, California

  55-plus RV resort with artesian mineral pools near the Salton Sea.

• Public pool

  Franklin Hot Springs, California

  Mineral pool of about 97°F and a 100°F hot tub near Paso Robles; open daily.

• Natural

  Frenchman's Bend Hot Springs, Idaho

  Free rock-walled pools by Warm Springs Creek west of Ketchum; you can adjust the temperature.

• Backcountry

  Gamma Hot Springs, Washington

  Tiny four-person pool by a 140°F source, reached off trail deep in the wilderness.

• Warm spring

  Gandy Warm Springs, Utah

  Warm spring up to 81°F on BLM land in remote western Utah, home to a rare springsnail.

• Natural

  Gaviota State Park Hot Springs, California

  Free sulphur pools at 95–115°F, a steep half-mile walk in Gaviota State Park.

• View only

  Geyser Warm Spring, Colorado

  Colorado's only true geyser, on a forest trail near Dunton. It gives off gas, so look but don't soak.

• Swimming area

  Gigantic Warm Spring, Montana

  Huge warm spring feeding a summer swimming area with a lifeguard, wading pool and picnic tables.

• Campground

  Gila Hot Springs Campground, New Mexico

  Three rock pools at 101–104°F on the Gila River; day use about $8, camping available.

• Resort

  Givens Hot Springs, Idaho

  Year-round indoor pool with a kiddie pool, cabins and camping near Marsing.

• RV resort

  Glamis North Hot Springs Resort, California

  Seasonal resort, October to May, with two mineral pools and 14 hot tubs.

• Day spa

  Glen Ivy Hot Springs, California

  Adults-only day spa with 19 mineral pools; reservations required.

• Public pool

  Glenwood Hot Springs Pool, Colorado

  Huge town pool off I-70: the Grand Pool runs 90–93°F and the therapy pool 104°F.

• Bathhouse

  Goddard Hot Springs, Alaska

  Free city-owned cedar bathhouses with adjustable tubs, 16 miles south of Sitka by floatplane or skiff.

• Public pool

  Gold Fork Hot Springs, Idaho

  Six terraced pools at 85–110°F with changing rooms, open all year.

• Natural

  Gold Strike Hot Springs, Nevada

  Pools at 100–109°F in a slot canyon, reached by a strenuous hike with rope sections; October to May.

• Natural

  Goldbug Hot Springs, Idaho

  Free waterfall-fed pools on BLM land, reached by a moderate hike of about 2 miles each way with a steep finish.

• Resort

  Golden Haven Hot Springs Spa and Resort, California

  Family-owned resort with a mineral pool and couples' mud bath packages.

• Reservation only

  Goldmyer Hot Springs, Washington

  Three pools at 98–111°F, including one in an old mine shaft, at the end of a 4.5-mile hike; 20 people a day.

• RV resort

  Grande Hot Springs, Oregon

  RV resort with seasonal mineral pools and private yurt tubs; swimsuit required.

• Natural

  Granite Creek Hot Spring, Idaho

  Free roadside pools at 100–115°F on the Middle Fork Boise River Road.

• Public pool

  Granite Hot Springs Pool, Wyoming

  Forest Service pool about 93°F in summer and hotter in winter, 34 miles from Jackson; winter access by snowmobile or skis.

• Backcountry

  Greeley Bar Hot Springs, Oregon

  Free pools on the Owyhee River, mostly reached on multi-day float trips.

• Resort

  Green Canyon Hot Springs, Idaho

  Three geothermal pools, an indoor pool, a cold plunge and camping, with a history of over a century.

• Backcountry

  Ground Hog Hot Springs, Idaho

  Free 100°F pool, a 3.5-mile hike from Boiling Springs Campground.

• Public pool

  Grover Hot Springs State Park, California

  State park mineral pool at 102–104°F with camping; about $10 entry.

• Closed

  Hacienda del Camino Real & Hot Springs, New Mexico

  Historic resort that is temporarily closed and listed for sale.

• Retreat

  Harbin Hot Springs, California

  Retreat with pools at 98–115°F; clothing optional, with membership and reservations.

• Natural

  Hart Mountain Hot Springs, Oregon

  Two free primitive pools in Hart Mountain National Antelope Refuge; no cell service.

• Resort

  Haven Hot Springs, Idaho

  Mineral pool, private tubs, motel rooms, camping and a cafe on Highway 21 in Lowman.

• Natural

  Healing Springs, Virginia

  Group of three undeveloped mineral springs in the countryside south of Hot Springs.

• Resort

  Healing Waters Resort & Spa, Colorado

  Family-owned resort in downtown Pagosa with an outdoor pool, hot tub and indoor baths.

• Resort

  Heise Hot Springs, Idaho

  Family resort with a 105°F pool, a 350-foot waterslide, a zipline, golf and camping.

• Water park

  Hellie's Tepee Pools, Wyoming

  Pools at 94–104°F with waterslides and a steam room inside Hot Springs State Park; open daily.

• Jug fountain

  Hill Wheatley Plaza Jug Fountain (Hot), Arkansas

  Free fountain where locals fill jugs with thermal drinking water, a block from Bathhouse Row.

• Natural

  Hilltop Hot Springs, California

  Free tub at 100–110°F on a rise with 360-degree views of the Sierra.

• Private retreat

  Holladay Hot Springs, Arizona

  Private retreat near Eden that is not open for walk-in soaking; contact the operator.

• Natural

  Holtville Hot Springs, California

  Free BLM artesian pools at 104–110°F; day use, swimsuit required.

• Geothermal crater

  Homestead Crater, Utah

  65-foot-deep pool at 90–96°F inside a limestone dome, open for soaking, swimming and scuba; paid entry.

• Closed

  Hookers Hot Springs, Arizona

  Springs on a Nature Conservancy preserve that are closed to visitors.

• Inn

  Hoosier Hot Springs and Inn, New Mexico

  1937 inn with four private pools at 104°F and five rooms.

• Hotel

  Hope Springs Resort, California

  Adults-only ten-room hotel with pools from 85°F to 104°F.

• Warm spring

  Horseshoe Springs, Utah

  BLM springs at about 70°F with a boardwalk and fishing; not a soaking spot.

• View only

  Hot Creek Geologic Site, California

  Free overlook of boiling springs in a creek gorge; swimming has been banned for safety.

• Historic hotel

  Hot Lake Springs, Oregon

  Historic hotel with five lakeside mineral pools open for day use all year.

• Glamping

  Hot Springs Glamp Camp, New Mexico

  Gated glamping camp with 24-hour tubs at 107–111°F for guests only.

• BLM area

  Hot Springs Long Term Visitor Area, California

  BLM area with a hot spring pool; free day use and paid winter camping.

• National park

  Hot Springs National Park, Arkansas

  Water surfaces at about 143°F, too hot to soak in outdoors; bathe in it at the Buckstaff or Quapaw bathhouse. No entrance fee.

• Private tubs

  Hot Springs Resort & Spa, North Carolina

  Private roofed tubs of natural mineral water beside the French Broad River, booked by the session; no stay needed.

• Free bathhouse

  Hot Springs State Park Bath House, Wyoming

  Free state-run mineral pools at 104°F, with a time limit and attendants; open daily.

• Resort

  Hot Sulphur Springs Resort & Spa, Colorado

  Year-round resort with more than 20 chemical-free pools and private baths, plus lodging.

• View only

  Hot Water Cascade, Arkansas

  Steaming 143°F water spilling down a rock face behind Bathhouse Row; free and open all year.

• BLM tubs

  Hot Well Dunes Recreation Area, Arizona

  Concrete hot tubs among sand dunes on BLM land, open in daylight hours with a vehicle day-use fee.

• Hotel

  Hotel Hale In-Room Thermal Soaking Tubs, Arkansas

  Restored 1892 bathhouse turned hotel, with thermal soaking tubs in each of its nine suites.

• Backcountry

  House Log Canyon Hot Spring, New Mexico

  Remote spring on a long backcountry hike up the Middle Fork of the Gila.

• View only

  Huckleberry Hot Springs, Wyoming

  Riverside springs near Flagg Ranch where the Park Service has banned soaking since 2014 for health reasons.

• Geyser

  Hunters Hot Springs, Oregon

  Historic site with a 104°F mineral pool and Old Perpetual geyser; check current status before visiting.

• Backcountry

  Hutlinana Hot Springs, Alaska

  Undeveloped springs about 7 miles off the Elliott Highway across unmarked ground, usually visited on skis in winter.

• Natural

  Hyder Hot Springs, Nevada

  Remote geothermal site with travertine mounds, hot seeps and a soaking pool.

• Guest ranch

  Idaho Rocky Mountain Ranch, Idaho

  All-inclusive guest ranch founded in 1930, with a pool at 99–104°F under the Sawtooths.

• Private retreat

  Indian Hot Springs, Arizona

  Private retreat on very hot springs near Eden; no walk-in soaking.

• Resort

  Indian Hot Springs, Colorado

  Historic Idaho Springs resort with an indoor mineral pool, outdoor tubs and geothermal cave baths.

• Bathhouse

  Indian Springs Bath Houses, New Mexico

  Private gravel-bottomed artesian tubs with walk-in day soaks.

• Resort

  Indian Springs Calistoga, California

  Historic resort with a large geyser-fed pool, for hotel or spa guests.

• Resort

  Indian Springs Resort, Idaho

  Spring-fed pool with two waterslides, lifeguards and year-round RV camping.

• Natural

  Inlet Park Hot Springs, Utah

  Three free mud-bottomed pools a quarter-mile walk from Inlet Park; swimsuit required, closes at 10pm.

• Soaking pools

  Iron Mountain Hot Springs, Colorado

  Small soaking pools of different temperatures on the Colorado River, plus a family pool.

• Lodge

  Jackson Hot Springs Lodge, Montana

  Rustic lodge in the Big Hole Valley with a mineral pool, restaurant and rooms; open Thursday to Sunday.

• Spa

  Jackson Wellsprings, Oregon

  Mineral spa 2.5 miles from Ashland with a large pool, soaking tubs, steam room and camping.

• Resort

  Jacumba Hot Springs Resort, California

  Desert resort with three natural pools; adults 21 and over at the main property.

• Soaking pools

  Jemez Hot Springs, New Mexico

  Four outdoor pools at 98–105°F by the hour, walk-ins only, about 60 miles from Albuquerque; ages 14 and over.

• Bathhouse

  Jemez Springs Bath House, New Mexico

  Village bathhouse with eight private tubs, massage and wraps; ages 14 and over, closed Wednesdays.

• Natural

  Jerry Johnson Hot Springs, Idaho

  Free Forest Service pools from three sources, about a mile and a half from US-12.

• Backcountry

  Jordan Hot Spring, New Mexico

  Free 94–100°F pool deep in the Gila Wilderness, a 14-mile round trip with many river crossings.

• Backcountry

  Jordan Hot Springs, California

  104°F pools at an old resort site, a six-mile hike with a 3,000-foot descent.

• Spa

  Joyful Journey Hot Springs, Colorado

  Year-round spa in the San Luis Valley with three chemical-free pools, yurts and rooms.

• Rustic pools

  Juniper Hot Springs, Colorado

  Rustic springs on the Yampa River in Moffat County, with pools and campsites.

• Natural

  Juntura Hot Springs, Oregon

  Primitive pool on an island in the Malheur River, reached by a river crossing; best autumn to winter.

• Guest ranch

  K Bar L Ranch & Medicine Springs, Montana

  Wilderness guest ranch reached by jet boat or horseback, with a warm pool of about 86°F.

• Spa

  Kachina Mineral Springs Spa, Arizona

  Small spa with private mineral tubs and an outdoor pond; appointments required.

• Resort

  Kah-Nee-Ta Hot Springs, Oregon

  Tribal resort with mineral pools, private tubs, a lazy river and teepees; reopened in July 2024.

• Natural

  Kaiser Hot Springs, Arizona

  Free pool of about 100°F in a desert wash, a 1.4-mile sandy walk from US-93; no facilities.

• Backcountry

  Kanuti River Hot Springs, Alaska

  Remote springs with no trail or facilities, about 12 miles cross-country from the Dalton Highway.

• View only

  Kelly Hot Springs, Wyoming

  Warm pool in Grand Teton National Park where getting in is strongly discouraged because of bacteria.

• Destroyed

  Kennedy Hot Springs, Washington

  Famous wilderness spring buried by a flood in 2003; there is nothing left to soak in.

• Public pool

  Keough's Hot Springs, California

  Two geothermal pools south of Bishop, open to day visitors since 1919.

• Natural

  Kirkham Hot Springs, Idaho

  Hot waterfalls and rock pools on the South Fork Payette by Highway 21; $5 parking, family friendly.

• Natural

  Kyle Hot Springs, Nevada

  Very remote tubs at 85–105°F at an abandoned site; 4WD advised.

• Spa

  La Paloma Hot Springs & Spa, New Mexico

  Private natural mineral pools with sand bottoms, for day soaks and stays.

• Public pool

  Lava Hot Springs, Idaho

  State-run complex of five outdoor pools at 102–112°F in the town of Lava Hot Springs; open all year.

• Closed

  Lehman Hot Springs, Oregon

  Historic resort near Ukiah, closed to the public and used only for private group bookings.

• Natural

  Lemon Hot Spring, Colorado

  Undeveloped warm spring on the San Miguel River, about 90°F, with no facilities.

• Hotel

  Lido Palms Resort and Spa, California

  Ten-room adults-only hotel with indoor and outdoor pools.

• Natural

  Lightfeather Hot Spring, New Mexico

  Free riverside pool a short hike from the Gila Cliff Dwellings, with two river crossings.

• Inn

  Lithia Springs Resort, Oregon

  Inn near Ashland with a private mineral soaking tub in every room and breakfast included.

• Natural

  Little Caliente Hot Springs, California

  Free hillside pool of about 105°F, reached on a dirt forest road.

• Closed

  Little Jamaica Hot Springs, Arizona

  Former roadside pool off I-15; closed by ADOT in 2022, with the pool removed and the site fenced.

• Natural

  Loftus Natural Hot Spring, Idaho

  Two sandy pools fed by a hot waterfall on the Middle Fork Boise River Road; free.

• Resort

  Lolo Hot Springs, Montana

  Year-round resort on US-12 with indoor and outdoor mineral pools, a restaurant, bar and cabins.

• Natural

  Lone Palm Hot Springs, Arizona

  Warm pool beside a lone palm on the river below Hoover Dam, reached by kayak or a hike.

• View only

  Longmire Springs, Washington

  Mineral springs on the Trail of the Shadows loop at Longmire; not for soaking.

• Resort

  Lost Trail Hot Springs, Montana

  Rustic resort near Lost Trail Pass with a mineral pool, sauna, hot tub and lodging.

• Natural

  Lower Breitenbush Hot Springs, Oregon

  Free Forest Service pools on the riverbank, a rough half-mile trail away; clothing optional.

• Backcountry

  Lower Loon Creek Hot Spring, Idaho

  Wooden tub fed by a 120°F spring in the Frank Church Wilderness, a stop on Middle Fork rafting trips.

• Natural

  Lower Warm Springs (Saline Valley), California

  Primitive pools in Saline Valley; 4WD and a Death Valley entrance fee needed.

• View only

  Mammoth Hot Springs, Wyoming

  Steaming travertine terraces you walk on boardwalks, open all year; soaking is not allowed.

• Natural

  Manby Hot Springs, New Mexico

  Free stone pools at 90–100°F on the Rio Grande west of Taos, with no facilities; watch for floods.

• Greenhouse tubs

  Manley Hot Springs Resort, Alaska

  Geothermal soaking tubs inside a greenhouse at the end of the Elliott Highway, about 160 miles from Fairbanks.

• Resort

  Maple Grove Hot Springs, Idaho

  Six mineral pools, a sauna, yurts and cabins on the Bear River, with accessible access.

• Natural

  McCauley Warm Springs, New Mexico

  Warm 87–95°F pools, a 3.5-mile hike in the Jemez Mountains; day use only.

• Natural

  McCredie Hot Springs, Oregon

  Rock-walled pools on Salt Creek beside Highway 58; $5 per vehicle, day use only, clothing optional.

• Natural

  Meadow Hot Springs, Utah

  Three clear pools up to 100°F in open pasture on private land that has been open to the public.

• Historic estate

  Medicine Hot Springs, Montana

  Historic estate with an outdoor pool and bathhouse that was sold in 2026; check access first.

• Backcountry

  Melozi Hot Springs, Alaska

  A cluster of around 20 springs in the Interior, reached by charter floatplane or a multi-day trip from Ruby.

• Resort

  Mercey Hot Springs, California

  Remote desert resort with 19 outdoor tubs at 102–106°F, cabins and camping.

• Private cabins

  Merrifield Homestead Cabins, Colorado

  Two old homestead cabins on Cottonwood Creek, each with its own hot spring pool.

• Hotel

  Mi Kasa Hot Springs, California

  Adults-only clothing-optional hotel with day passes and rooms.

• View only

  Mickey Hot Springs, Oregon

  BLM geothermal area with boiling pools and a small geyser; far too hot to soak.

• Natural

  Mile 16 Hot Springs, Idaho

  Free riverside pool on Forest Road 474, often under water in spring.

• Natural

  Milford Sweat Hot Spring, Idaho

  Two pools beside US-26 on private land near Carey.

• Resort

  Miracle Hot Springs, Idaho

  Shared pools, private tubs, massages and glamping domes near Thousand Springs.

• Hotel

  Miracle Manor Boutique Hotel and Spa, California

  Nine-room hotel with a 90°F pool and a 104°F tub.

• Resort

  Miracle Springs Resort & Spa, California

  110-room resort with eight outdoor pools open 24 hours; day passes available.

• Spa

  Moccasin Springs Natural Mineral Spa, South Dakota

  Adults-only spa in the ruins of an 1890 bathhouse, with six outdoor non-chlorinated pools at 80–105°F.

• Natural

  Mollys Hot Spring, Idaho

  Free hillside pools fed by a pipe, near Warm Lake.

• Historic resort

  Mono Hot Springs, California

  Historic 1935 resort with a stone bathhouse, reached by a seasonal mountain road.

• Resort

  Monroe Hot Springs Resort, Utah

  Pools and vintage cast-iron tubs on the Monroe hillside spring, with day passes and overnight stays.

• Natural

  Montecito Hot Springs, California

  Free cascading pools from 60°F to 112°F, on a moderate hike above Montecito.

• Free tubs

  Montezuma Hot Springs, New Mexico

  Free cement tubs at 94–120°F beside the road 5 miles from Las Vegas, New Mexico; open until 10pm.

• Seasonal pool

  Morton's Warm Springs, California

  Seasonal pool at 90–94°F, open May to September with day reservations.

• Resort

  Mount Princeton Hot Springs Resort, Colorado

  Big resort on Chalk Creek with pools, waterslides, lodging and soaking in the creek itself.

• Private

  Mountain Point Lake & Hot Springs, Utah

  104°F mineral spring and a private lake for members and group rentals only.

• Private tubs

  Mountain Village Resort Hot Springs, Idaho

  Log-cabin and private tubs at a Stanley lodge, booked by reservation for guests and visitors.

• Resort

  Mundo Hot Springs, Idaho

  102°F mineral pool with a bistro and RV and tent camping near Cambridge.

• Resort

  Murrieta Hot Springs Resort, California

  Family-friendly resort with dozens of mineral pools and day passes.

• Resort

  Mystic Hot Springs, Utah

  Travertine pools and vintage cast-iron tubs at 99–110°F on a hillside in Monroe, with day passes and stays.

• Resort

  Nat-Soo-Pah Hot Springs, Idaho

  Large mineral pool with a waterslide, diving boards and lifeguards; May to September.

• Natural

  Nathan's Hippy Dip Hot Spring, Colorado

  Free rock-walled pools on the San Juan River in downtown Pagosa Springs, with no facilities.

• Natural

  Nimrod Hot Springs, Montana

  Free undeveloped pool of about 70°F off I-90, a short walk from the road.

• Public pool

  Norris Hot Springs, Montana

  Wood-lined artesian pool on Highway 84 with a poolside cafe, bar and live music.

• Closed

  Ogden Hot Springs, Utah

  Former pools at the mouth of Ogden Canyon on private land; dismantled, and trespassing is enforced.

• View only

  Ohanapecosh Hot Springs, Washington

  Former resort site near the Ohanapecosh campground, closed since 1960; soaking is not allowed.

• Resort

  Ojo Caliente Mineral Springs, New Mexico

  Historic resort founded in 1868, with pools of different minerals at 80–105°F, lodging, a spa and restaurant.

• Resort

  Ojo Santa Fe Spa Resort, New Mexico

  Spring-fed pools on 77 acres south-west of Santa Fe, with communal and private tubs; day soaks without reservations.

• Public pool

  Old Town Hot Springs, Colorado

  Community hot springs in downtown Steamboat with mineral pools, two waterslides and a climbing wall.

• Backcountry

  Olympic Hot Springs, Washington

  Pools at 85–105°F in Olympic National Park; a road closure since 2024 adds about 8 miles to the hike.

• Resort

  Orr Hot Springs, California

  Rustic resort in the redwoods with cabins; clothing optional, day use by reservation.

• Naturist resort

  Orvis Hot Springs, Colorado

  Clothing-optional resort near Ridgway with untreated, lithium-rich pools and rooms.

• Public pool

  Ouray Hot Springs Pool, Colorado

  City-run outdoor pools in Ouray with odor-free mineral water and an adults-only area.

• Spa

  Overlook Hot Springs Spa, Colorado

  Victorian bathhouse in downtown Pagosa with indoor pools and rooftop tubs over the river.

• View only

  Pagosa Hot Springs (Mother Spring), Colorado

  The Mother Spring, certified as the world's deepest geothermal hot spring; it feeds the town's pools.

• Closed

  Pah Tempe Hot Springs, Utah

  Historic springs in the Virgin River gorge with no public access; the water now feeds Zion Canyon Hot Springs.

• Natural

  Palm Spring (Saline Valley), California

  Two remote pools at about 98–112°F among palms in Saline Valley.

• Natural

  Panther Hot Springs, Idaho

  Free travertine pools and a rock sauna by Panther Creek, with easy access.

• Natural

  Paradise Valley Hot Springs, Nevada

  Free volunteer-built tubs at 95–108°F fed by a 130°F source.

• Natural

  Paulina Lake Hot Springs, Oregon

  Primitive pools dug into the lakeshore, a 2.3-mile hike from Little Crater Campground.

• Motel

  Pelican Spa, New Mexico

  Five private indoor tubs at 105°F; walk-ins pay by the hour and guests soak free.

• Natural

  Penny Hot Springs, Colorado

  Free rock pools on the edge of the Crystal River, right below Highway 133.

• Natural

  Piedra River Hot Springs, Colorado

  Free rock-lined pools on the Piedra River, a 1.5-mile hike from the trailhead.

• Permit only

  Pilgrim Hot Springs, Alaska

  Historic hot springs about 60 miles north-east of Nome; visits need a permit from the landowners.

• Public pool

  Pincock Hot Springs, Idaho

  Family pools from 1903 at 96–115°F with a cold plunge and camping.

• Natural

  Pine Flats Hot Springs, Idaho

  Hot waterfall and cliff pools above the South Fork Payette, a short trail from Pine Flats Campground.

• Roadside spring

  Pinkerton Hot Springs, Colorado

  Roadside spring beside US 550, known for its orange mineral mound.

• Glamping

  Pipestone Hot Springs, Montana

  Glamping cabins with private outdoor tubs, for overnight guests only.

• Natural

  Pohoiki Warm Ponds, Hawaii

  Free geothermally warmed ponds by Isaac Hale Beach Park, formed after the 2018 Kīlauea eruption; lifeguards nearby.

• View only

  Polecat Hot Springs, Wyoming

  Springs on the same trail as Huckleberry, closed to soaking after bacteria and amoebas were found.

• Private cabins

  Potosi Hot Springs, Montana

  Cabin retreat in the Tobacco Root Mountains with a mineral pool and sauna for cabin guests only.

• Natural

  Prince Albert Hot Springs, Idaho

  Free BLM pools reached by a steep road or a 2-mile hike, with wide desert views.

• View only

  Pumpkin Spring, Arizona

  Orange travertine pool on the Colorado River in the Grand Canyon, seen from rafts; soaking is banned because of arsenic.

• Retreat

  Puna Rainforest Retreat, Hawaii

  Rainforest estate with volcanically heated tubs and steam vents, rented as cottages or as a whole.

• Bathhouse

  Quapaw Baths & Spa, Arkansas

  1922 bathhouse with four shared thermal pools and private baths; walk-in entry is about $25.

• Resort

  Quinn's Hot Springs Resort, Montana

  Seven pools from 90°F to 106°F on the Clark Fork River; day use by reservation.

• Natural

  Radium Hot Springs, Colorado

  Free warm pool on a ledge above the Colorado River, a short hike from a BLM trailhead.

• Natural

  Rainbow Hot Springs, Colorado

  Free pools of 95–105°F in the Weminuche Wilderness, a 4.5-mile hike each way.

• Private soak

  Raspberry Hot Springs, Colorado

  Private stone pool on a mountain ranch above Idaho Springs, by reservation only.

• Natural

  Red Hill Hot Springs, Utah

  Free city-managed pools below a near-boiling source east of Monroe; closes at dusk.

• Lodge

  Red River Hot Springs, Idaho

  Remote lodge with a 95°F pool and hotter tubs, open all year.

• Hotel

  RELAX Hotel and Spa, California

  Mineral water hotel with a large pool; day use from about $30.

• Natural

  Remington Hot Springs, California

  Free volunteer-built tubs at 80–115°F on the Kern River, down a steep quarter-mile trail; swimwear required.

• Natural

  Renova Hot Springs, Montana

  Free rock pools on the Jefferson River, a short walk from a dirt-road pullout; clothing optional.

• Natural

  Rhodes Warm Spring, Colorado

  Warm seep above 10,000 ft near Fairplay, reached by a moderate hike.

• Private estate

  Riggins Hot Springs, Idaho

  Private estate with a hot spring pool 9 miles east of Riggins, by reservation only.

• Resort

  Riverbend Hot Springs, New Mexico

  Outdoor pools at 95–108°F on the banks of the Rio Grande, with an accessible pool lift; ages 12 and over.

• Resort

  Riverdale Resort Hot Springs, Idaho

  Four geothermal pools and two waterslides with cabins and RV camping.

• Historic hotel

  Riverside Inn and Hot Springs, Idaho

  Adults-only historic hotel with private geothermal soaking rooms and a spa.

• Natural

  Rocky Canyon Hot Springs, Idaho

  Tiered primitive pools, the upper ones near 105°F, reached by fording the Middle Fork Payette.

• Warm spring

  Rogers Spring, Nevada

  Shallow 82°F spring pool with picnic areas in Lake Mead National Recreation Area; park fee.

• Resort

  Roman Spa Hot Springs Resort, California

  60-room resort with three mineral pools and a full spa.

• View only

  Roosevelt Hot Springs, Utah

  Geothermal area with mud pots and steam vents by a power plant; the springs dried up in 1966.

• Closed

  Roper Lake State Park Hot Spring, Arizona

  State park near Safford with camping and lake swimming; its hot spring tub is permanently closed.

• Public pool

  Rose's Plunge, Montana

  Outdoor concrete mineral pool with honor-box entry; swimsuit required.

• Private rental

  Roystone Hot Springs, Idaho

  Covered mineral pool and jetted tub, by private reservation only.

• Natural

  Ruby Valley Hot Springs, Nevada

  Free primitive pool at 100–103°F in the Ruby Valley, about 60 miles from Elko; 4WD recommended.

• Natural

  Russian John Hot Spring, Idaho

  Small free pool of 98–105°F a short walk from Highway 75 in the Sawtooth National Recreation Area.

• Backcountry

  Ryegrass Hot Springs, Oregon

  Riverside pools on the Owyhee, usually reached on multi-day river trips.

• Natural

  Sacajawea Hot Springs, Idaho

  Free riverside pools along the Grandjean Road, with pullouts for parking.

• Hotel

  Sagewater Springs, California

  Seven-room spa hotel with a 104°F spa and a 90°F mineral pool.

• Public pool

  Salida Hot Springs Aquatic Center, Colorado

  City-run indoor hot springs pool in Salida, with lap and leisure pools and private baths.

• Public pool

  Sam's Family Spa, California

  Family RV park with chlorine-free mineral pools up to 104°F.

• Natural

  San Antonio Hot Springs, New Mexico

  Free pools at 95–110°F on a hillside; the road closes seasonally; clothing optional.

• Natural

  San Francisco Hot Springs, New Mexico

  Free pools at 100–120°F along the San Francisco River near Glenwood; a river crossing on Trail 250.

• Public pool

  Sand Dunes Pool, Colorado

  Hot springs pool near Great Sand Dunes with a family pool, therapy pool and adults-only greenhouse.

• Free pool

  Saratoga Hobo Hot Pool, Wyoming

  Free town mineral pool by the North Platte River, open around the clock; the main pool runs 106–119°F.

• Natural

  Saratoga Hot Springs, Utah

  Free day-use pools with a 107–110°F source on the shore of Utah Lake; mud and algae bottoms.

• Resort

  Saratoga Hot Springs Resort, Wyoming

  Resort with a 70-foot mineral pool and teepee-covered tubs for guests, members and spa visitors.

• Lodge

  Sawtooth Lodge Hot Springs, Idaho

  1927 lodge with a 104°F pool and cabins at Grandjean; no cell service.

• Reservation only

  Scenic Hot Springs, Washington

  Hillside pools at 105–118°F, a 2-mile climb from US-2; advance reservations, no walk-ins.

• Nude resort

  Sea Mountain Inn, California

  Adults-only clothing-optional inn with two pools at 98–104°F.

• Nude resort

  Sea Mountain Nude Resort & Spa, California

  Adults-only clothing-optional resort for couples and women.

• Backcountry

  Secesh Hot Springs, Idaho

  Remote springs in the Payette National Forest, about an 11-mile hike in.

• Bathhouse

  Serpentine Hot Springs, Alaska

  Free bathhouse and bunkhouse among granite tors in Bering Land Bridge National Preserve; reached by small plane or snowmobile.

• Backcountry

  Sespe Hot Springs, California

  Remote springs in the Sespe Wilderness, reached only on foot or horseback.

• Public pool

  Sharkey Hot Springs, Idaho

  Two concrete BLM pools with heated changing rooms in the Lemhi Valley east of Salmon.

• Natural

  Sheep Bridge Hot Springs, Arizona

  Free pool by the Verde River at the end of a long, rough road from Carefree; high clearance needed.

• Natural

  Sheep Creek Bridge Hot Spring, Idaho

  Free roadside pools by a 142°F source on the Middle Fork Boise River Road.

• Backcountry

  Sheepeater Hot Springs, Idaho

  Three pools by the Middle Fork Salmon River in the Frank Church Wilderness, usually reached by raft.

• Backcountry

  Shelokum Hot Springs, Alaska

  Free undeveloped pool in Tongass National Forest, reached by boat or floatplane to Bailey Bay and a 2.3-mile trail.

• Natural

  Shepherd Hot Springs, California

  Free concrete tub on BLM land with no facilities; clothing optional.

• Closed

  Shipherd's Hot Springs, Washington

  Historic spring site on the Wind River, now private with no public soaking.

• Inn

  Shoshone Hot Springs, California

  Natural mineral pool at an inn and campground in Shoshone, near Death Valley.

• Backcountry

  Shower Bath Hot Springs, Idaho

  Warm water pours from an overhang like a shower, about 11 miles in on the Big Creek trail; source near 122°F.

• Lodge

  Sierra Grande, New Mexico

  Lodge with four private mineral tubs at 104°F; walk-in soaks about $30.

• Retreat

  Sierra Hot Springs, California

  Non-profit retreat with pools and a lodge; clothing optional, reservations required.

• Resort

  Silver Creek Plunge, Idaho

  Large spring-fed pool with cabins and tent camping in Peace Valley.

• Backcountry

  Skillern Hot Springs, Idaho

  Primitive pool by a 140°F source, a 6-mile hike from Canyon Transfer Camp.

• Closed

  Skinny Dipper Hot Springs, Idaho

  Former hillside pools near Banks, closed by the BLM in 2016 for safety and environmental reasons.

• Backcountry

  Slate Creek Hot Spring, Idaho

  Remote pool in the White Clouds, a 4.6-mile hike from Slate Creek Road.

• Resort

  Sleeping Buffalo Hot Springs, Montana

  Three indoor mineral pools, a sauna, cabins and a campground on the Hi-Line; day use available.

• Private rental

  Sleeping Child Hot Springs, Montana

  Nine-bedroom lodge rented to private groups; book well in advance.

• Natural

  Smith Cabin Hot Spring, Idaho

  Free roadside pools below a 138°F source on the Middle Fork Boise River Road.

• Natural

  Snively Hot Springs, Oregon

  Free BLM pool on the Owyhee River below the dam; day use only, clothing optional.

• Natural

  Soda Dam Hot Spring, New Mexico

  Hot springs at a natural travertine dam on the Jemez River beside Highway 4.

• Resort

  Sol Duc Hot Springs Resort, Washington

  Three mineral pools at 98–107°F in the Olympic rainforest, open March to October; day use available.

• Resort

  Solage Calistoga, California

  Luxury resort with five mineral pools and mud treatments.

• Natural

  Soldier Meadows Hot Springs, Nevada

  Free rock-dammed pools at 90–112°F with BLM camping on site; no sunscreen in the water.

• Private plunge

  Sophia Springs, Montana

  Private artesian plunge for overnight guests only.

• Natural

  South Canyon Hot Springs, Colorado

  Free primitive pools on a hillside west of Glenwood, a short walk up; clothing optional.

• Natural

  South Harney Lake Hot Springs, Oregon

  Undeveloped seep with two dug-out pools at the end of an 8-mile dirt road; no facilities.

• Motel

  Spa Hot Springs Motel and Clinic, Montana

  Year-round motel with three untreated pools open for day use.

• Tiny homes

  Spellbound Springs, New Mexico

  Tiny-home village with private natural tubs for overnight guests only.

• Natural

  Spence Hot Spring, New Mexico

  Free 95°F hillside pools a short walk from the road; clothing optional.

• Natural

  Spencer Hot Springs, Nevada

  Free BLM tubs at 90–110°F in open sagebrush, 19 miles from Austin; easy access, no facilities.

• Public pool

  Splashland Hot Springs, Colorado

  Seasonal outdoor hot springs pool in Alamosa, open from late spring through summer.

• Natural

  Squaw Baths Hot Springs, California

  Free roadside spring of about 106°F in remote Surprise Valley.

• Backcountry

  Stanley Hot Springs, Idaho

  Free pools on Boulder Creek, a 5-mile hike from Wilderness Gateway Campground.

• Closed

  Star Plunge, Wyoming

  Thermopolis water park closed since January 2025 amid a dispute with Wyoming State Parks.

• Public pool

  Starkey Hot Springs, Idaho

  Odor-free 95–105°F pools about 30 miles from McCall; day use only.

• Private tubs

  Steamboat Hot Springs, Nevada

  Private mineral tubs south of Reno; book ahead, ages 12 and over.

• Spa

  Steamboat Hot Springs Healing Center and Spa, Nevada

  Private tubs and a steam room at a healing centre on the Steamboat geothermal field; no under-12s.

• Natural

  Stinky Hot Springs, Utah

  Three cement tubs at 108–113°F on private land where the owner allows access; strong sulphur smell.

• Resort

  Strawberry Park Hot Springs, Colorado

  Stone pools at 103–107°F beside a creek in the woods; cash only, and every visit needs a reservation.

• Closed

  Sulphur Creek Hot Springs, Washington

  Primitive warm spring in the Glacier Peak Wilderness, currently cut off by road damage and fire.

• View only

  Sulphur Works, California

  Roadside mud pots and steam vents in Lassen Volcanic National Park; wheelchair accessible.

• Resort

  Summer Lake Hot Springs, Oregon

  Year-round artesian resort with an indoor pool, outdoor rock tubs, cabins and camping.

• Natural

  Sunbeam Hot Springs, Idaho

  Free pools where hot water meets the Salmon River, beside Highway 75 with roadside parking.

• Natural

  Swissvale Warm Spring, Colorado

  Free roadside warm spring of about 82°F beside US 50, with no facilities.

• Resort

  Sycamore Mineral Springs Resort & Spa, California

  Resort with 24 private outdoor mineral tubs on a wooded hillside and a full spa.

• Backcountry

  Sykes Hot Springs, California

  Riverside pools in the Ventana Wilderness, a strenuous 9–10 mile hike each way.

• Historic hotel

  Symes Hot Springs Hotel & Mineral Baths, Montana

  1928 hotel with outdoor mineral pools and indoor clawfoot tubs; day use and rooms.

• Zen retreat

  Tassajara Hot Springs, California

  Zen monastery in the mountains that opens to guests in summer, by reservation.

• Resort

  Tecopa Palms Therapeutic Hot Springs Resort, California

  Family resort with private chemical-free tub rooms, cabins and camping.

• Japanese spa

  Ten Thousand Waves, New Mexico

  Japanese-style mountain spa above Santa Fe with a communal bath, private tub suites, a restaurant and lodging.

• Bathhouse

  Tenakee Hot Springs, Alaska

  Free community bathhouse in a tiny town on Chichagof Island, with separate hours for men and women; bathing is nude.

• Cabins

  Tenzen Springs & Cabins, Washington

  Adults-only cabins with nine private geothermal tubs; reservations required, no day use.

• Resort

  Terrace Lakes Hot Springs, Idaho

  Golf resort with a 90–100°F pool open all year; day use about $10.

• Natural

  Terwilliger Hot Springs, Oregon

  Cascading pools in a fern-lined canyon, a 0.4-mile walk from the road; clothing optional, with a day-use fee.

• Motel

  The Charles Motel & Hot Springs, New Mexico

  Motel with private indoor and rooftop mineral tubs, open to walk-in soakers.

• Hotel

  The O Spa Resort, California

  Clothing-optional boutique hotel with three mineral pools.

• Resort

  The Omni Homestead Resort, Virginia

  Historic mountain resort with a spa and pool fed by geothermal water.

• Day spa

  The Spa at Sec-he, California

  Agua Caliente tribal day spa in Palm Springs with private mineral baths.

• Resort

  The Spring Resort & Spa, California

  Adults-only resort with three geothermal pools and a Finnish sauna.

• Resort

  The Springs, Idaho

  Idaho City resort about 35 miles from Boise, with a large pool, private tubs and a steam room.

• Natural

  The Springs at Carson, Washington

  Two free pools at 102–105°F by the Wind River, reached by a short hike and river crossing in summer.

• Resort

  The Springs Resort and Spa, Colorado

  Dozens of terraced pools on the San Juan River in Pagosa Springs; day passes available.

• Natural

  Three Forks Warm Springs, Oregon

  Warm pools and a waterfall on the Owyhee; 4WD required and a river ford to the main pools.

• Backcountry

  Tolovana Hot Springs, Alaska

  Three outdoor tubs and rustic cabins, reached by an 11-mile trail off the Elliott Highway; best in winter.

• Natural

  Trail Creek Hot Springs, Idaho

  Two free primitive pools a short, steep path below Warm Lake Road; open all year.

• Natural

  Travertine Hot Springs, California

  Free pools on travertine ridges with Sierra views, a short walk from a dirt road; temperatures vary a lot.

• Private rental

  Treehouse Hot Springs, Colorado

  Treehouse lodge on Chalk Creek with its own private hot spring pool, for groups.

• Natural

  Trego Hot Springs, Nevada

  Free geothermal ditch at 90–100°F by a rail line; check water-quality advisories.

• Membership

  Trinity Hot Springs, Idaho

  Membership-based retreat with a large outdoor pool, cabins and camping.

• Backcountry

  Turkey Creek Hot Springs, New Mexico

  Hot pools in a Gila Wilderness canyon at the end of a strenuous trail with river crossings and scrambling.

• Hotel

  Tuscan Springs Hotel and Spa, California

  Boutique hotel for adults 21 and over with three mineral pools.

• Natural

  Twelvemile Hot Springs, Nevada

  Free primitive pool by a 104°F source, at the end of a 2-mile hike.

• Lodge

  Twin Peaks Lodge and Hot Springs, Colorado

  Ouray hotel with mineral pools, a vapor cave and a sauna, for overnight guests only.

• Resort

  Two Bunch Palms, California

  Adults-only wellness resort on 77 acres with five pools.

• Natural

  Umpqua Hot Springs, Oregon

  Travertine pools at 110–112°F above the river, 0.3 miles up a steep trail; day-use fee, daylight only.

• Backcountry

  Upper Frisco Hot Springs, New Mexico

  Remote hot springs in the Frisco Box, for experienced backcountry hikers only.

• Natural

  Upper Warm Spring (Saline Valley), California

  Clear blue pool of about 102°F in remote Saline Valley, part of Death Valley National Park.

• Naturist resort

  Valley View Hot Springs, Colorado

  Clothing-optional springs on a land trust, with natural ponds on a hillside above the San Luis Valley.

• Natural

  Verde Hot Springs, Arizona

  Free riverside pools at an old resort site on the Verde River; rough roads and a river crossing; clothing optional.

• Public pool

  Veyo Pool Hot Springs, Utah

  Seasonal 85°F spring-fed pool in a volcanic canyon about 20 miles from St. George, with climbing and camping.

• Resort

  Vichy Springs Resort, California

  Historic resort with naturally carbonated, chlorine-free tubs; day use and stays.

• Natural

  Virgin Valley Hot Springs, Nevada

  Free warm pool and CCC-era bathhouse beside a campground in Sheldon National Wildlife Refuge.

• Natural

  Vulcan Hot Springs, Idaho

  A creek warmed by a 190°F source, 0.75 miles from Stolle Meadows; the source is scalding.

• Ranch

  Wagon Wheel Gap Hot Springs, Colorado

  Historic springs on a working ranch near Creede, for overnight guests only, June to October.

• Bathhouse

  Wai Ola Springs, Hawaii

  Private bathhouse with eight mineral hot spring tubs on 10 acres, with camping; reservations only.

• Natural

  Wall Creek Hot Springs, Oregon

  Free oval pool on a creek, a flat 0.3-mile walk from the road; clothing optional, no facilities.

• Historic pools

  Warm Springs Pools, Virginia

  Two historic octagonal bathhouses over spring water at about 98°F, restored by the Omni Homestead.

• Closed

  Warner Hot Springs, California

  Historic resort whose pools are closed for redevelopment; confirm before visiting.

• Ranch

  Waunita Hot Springs Ranch, Colorado

  Family-run guest ranch east of Gunnison with a large hot spring pool.

• Natural

  Weir Creek Hot Springs, Idaho

  Free primitive pools in cedar forest, a steep half-mile trail from US-12.

• Bathhouse

  White Sulphur Hot Springs, Alaska

  Free Forest Service bathhouse on the outer coast, about 65 miles north-west of Sitka by boat plus a short trail.

• Natural

  Whitmore Hot Springs, California

  Free rock-lined tub at 100–104°F a few steps from BLM parking.

• Lodge

  Wiesbaden Hot Springs Spa and Lodgings, Colorado

  Historic Ouray lodge with an underground vapor cave, a mineral pool and a private soaking tub.

• Retreat

  Wilbur Hot Springs, California

  Off-grid retreat with mineral baths; reservations required, minimum age 13.

• Private plunges

  Wild Horse Hot Springs, Montana

  Private plunge pools for day use or overnight stays; clothing optional after dark.

• Backcountry

  Willett Hot Springs, California

  Concrete tub of about 100°F with free camping nearby, 9.5 miles into the Sespe Wilderness.

• Natural

  Willow Creek (Whitehorse Ranch) Hot Springs, Oregon

  Two free BLM pools by the road, 34 miles from Fields, with primitive camping; clothing optional.

• Natural

  Worswick Hot Springs, Idaho

  Free hillside rock pools on a steaming slope, reached late spring to autumn on dirt roads.

• Spa

  Yampah Hot Springs and Vapor Caves, Colorado

  Day spa built over natural underground steam caves, with mineral baths and treatments.

• Resort

  Yellowstone Hot Springs, Montana

  Flow-through pools by the Yellowstone River north of Gardiner, with day use, cabins and camping.

• Resort

  Zims Hot Springs, Idaho

  Two outdoor mineral pools in Meadows Valley with RV and tent camping, run by the Nez Perce Tribe.

• Resort

  Zion Canyon Hot Springs, Utah

  Resort near Zion National Park, opened in 2025, with 53 pools, family and adult areas and saunas.

Planning a hot springs trip to the United States

Seasons

Autumn through spring is the classic soaking season. Low desert springs are uncomfortable in summer heat, while many mountain springs are easiest to reach in summer and harder in winter: the gate on the road to Fifth Water Hot Springs closes from mid-November to late April, and Strawberry Park requires a 4WD vehicle with snow tires or chains from November 1 to May 1.

Entry fees

Many natural springs on national forest and BLM land are free, though some charge a parking or day-use fee, like Umpqua. Resorts and town pools charge admission; Strawberry Park is $30 for adults, cash only. National parks differ: Hot Springs National Park has no entrance fee, with the bathhouses charging separately, while Yellowstone charges $35 per vehicle for 7 days.

Access and travel

Most natural springs need a car, and many need a hike, a dirt road or, in winter, a 4WD vehicle. Each listing gives directions, road notes and the date we last checked access, so check it before a long drive.

Before you soak in the United States

Rules depend on who manages the land, but a few habits apply at almost every US hot spring.

• Keep dogs out of the poolsWhere dogs are allowed, keep them leashed and out of the water.
• Check the clothing ruleResorts and pools require swimwear. On public land it varies: some springs are clothing optional by custom, while Sequoia National Forest bans nudity outright.
• Keep your head above waterThe CDC advises always keeping your head above water in hot springs, because a rare but deadly amoeba can live in naturally hot water.
• Respect closures and gatesSeasonal closures protect roads, wildlife and fragile ground, and some are enforced with fines.
• Leave no soap, glass or trashNatural pools have no filters. Pack out everything you bring; glass is banned at many springs.
• Soak in short spellsIn pools above 105°F, get out every 10 to 15 minutes, drink water and skip alcohol.

Frequently asked questions about hot springs in the United States

Pictures of hot springs in the United States

Photos of Glenwood Hot Springs Pool, Umpqua Hot Springs, Fifth Water Hot Springs, Travertine Hot Springs, Hot Springs National Park and Mammoth Hot Springs, all hot springs in this guide. We only use photos whose license allows reuse and credit the photographer under each one. The full credits are on our photo credits page.

More hot springs in North America

Other countries in North America where we list hot springs.

• Canada
• Mexico
• Costa Rica

See every country with hot springs