Ranking · United States
The hottest hot springs you can soak in
Ranked by the hottest soaking-pool temperature each venue or land agency publishes, not the temperature at the source vent. Anything over about 104°F is a short soak: limit your time and drink water.
Top of the list
Highest-ranked with photos
Mount Princeton Hot Springs Resort
A large resort below the Chalk Cliffs between Buena Vista and Salida, with a historic bath house, terraced upper pools, an infinity pool and natural soaking spots along Chalk Creek. Day passes are walk-in, and summer adds twin water slides. An adults-only spa pool area is reserved for lodging guests and spa clients.
Mi Kasa Hot Springs
A small adults-only (21+), clothing-optional hotel with a natural hot springs pool, an indoor jacuzzi at about 103F and an outdoor jacuzzi at about 100F. Day passes and private tub rentals run 9am to 10pm with single entry. Leashed pets are welcome but may not enter the water.
Orvis Hot Springs
A clothing-optional hot springs between Ridgway and Ouray with ten indoor and outdoor pools and ponds from about 65 to 112°F, using water that is neither heated nor treated. Outdoor areas and the sauna are clothing-optional for adults, while children must wear suits. Rooms and a small campground offer round-the-clock soaking.
Ranked
Hottest pool, 25 springs
| # | Spring | Hottest pool | Range | Type |
|---|---|---|---|---|
| 1 | Hobo PoolSaratoga, Wyoming | 120°F | 101–120°F | Day pools |
| 2 | Mount Princeton Hot Springs ResortNathrop, Colorado | 120°F | 99–120°F | Resort & lodging |
| 3 | Kern Hot SpringThree Rivers, California | 115°F | 115°F | Wild spring |
| 4 | Mi Kasa Hot SpringsDesert Hot Springs, California | 115°F | 87–115°F | Resort & lodging |
| 5 | Orvis Hot SpringsRidgway, Colorado | 114°F | 65–114°F | Resort & lodging |
| 6 | The Springs ResortPagosa Springs, Colorado | 114°F | 83–114°F | Resort & lodging |
| 7 | Burgdorf Hot SpringsMcCall, Idaho | 113°F | 99–113°F | Resort & lodging |
| 8 | Indian Hot SpringsIdaho Springs, Colorado | 113°F | 108–113°F | Resort & lodging |
| 9 | Yampah Spa & Vapor CavesGlenwood Springs, Colorado | 113°F | 110–113°F | Bathhouse |
| 10 | Antero Hot Springs CabinsNathrop, Colorado | 112°F | 100–112°F | Resort & lodging |
| 11 | Hot Sulphur Springs Resort & SpaHot Sulphur Springs, Colorado | 112°F | 98–112°F | Resort & lodging |
| 12 | Iron Mountain Hot SpringsGlenwood Springs, Colorado | 112°F | 89–112°F | Day pools |
| 13 | Lava Hot Springs World Famous Hot PoolsLava Hot Springs, Idaho | 112°F | 102–112°F | Day pools |
| 14 | Pelican SpaTruth or Consequences, New Mexico | 112°F | 102–112°F | Bathhouse |
| 15 | Saratoga Hot Springs ResortSaratoga, Wyoming | 112°F | 96–112°F | Resort & lodging |
| 16 | Sierra Hot SpringsSierraville, California | 112°F | 95–112°F | Resort & lodging |
| 17 | Terwilliger (Cougar) Hot SpringsBlue River, Oregon | 112°F | 85–112°F | Wild spring |
| 18 | Baumgartner Hot SpringsFeatherville, Idaho | 111°F | 98–111°F | Day pools |
| 19 | Charles Motel & HotspringsTruth or Consequences, New Mexico | 111°F | 111°F | Bathhouse |
| 20 | Goldmyer Hot SpringsNorth Bend, Washington | 111°F | 104–111°F | Day pools |
| 21 | Mystic Hot SpringsMonroe, Utah | 111°F | 99–111°F | Resort & lodging |
| 22 | Sand Dunes RecreationHooper, Colorado | 111°F | 98–111°F | Resort & lodging |
| 23 | Breitenbush Hot SpringsDetroit, Oregon | 110°F | 100–110°F | Resort & lodging |
| 24 | Charlotte Hot Springs & Botanical GardensBuena Vista, Colorado | 110°F | 99–110°F | Day pools |
| 25 | Gold Fork Hot SpringsDonnelly, Idaho | 110°F | 85–110°F | Day pools |
How we ranked
Temperatures are the published maximum for soaking or private pools, from the venue’s or land agency’s own pages. Wild-spring temperatures vary with weather and how pools are dammed. Springs without a published pool temperature are not ranked.
Every listing is checked against the venue's or land agency's own website. We only include wild springs that a land agency or tourism office publishes. Rules and access change, so confirm before you go. Last verified November 2026.