Upper Idaho Hot Springs
Upper Idaho Hot Springs is a primitive thermal soaking spring located in Idaho County, Idaho Hot Springs near Idaho Area. Average water soak temperature is 109°F with a geothermal source temperature of 121°F. Access is 100% free on public land, and soak policy is swimsuit required. Explore nearby springs with our GPS Springs Near Me Finder.
Seasonal Soaking & Best Time to Visit
High-altitude mountain access routes and backcountry trailheads can experience seasonal snowpack from November through May. Peak summer and early autumn provide clear trail access and pleasant evening soak conditions.
Fact Sheet & Geothermal Specifications
| Average Soak Temp | 109°F |
| Geothermal Source Temp | 121°F |
| Trail Access | Dispersed Public Land / Roadside (GPS Coords) |
| Access Fee | 100% Free Public Access |
| Clothing Policy | Clothing Required |
| Pet Policy | Dog Friendly (Leashed) |
| Geothermal Data Citation | USGS Geothermal Data Portal |
| Public Land Management | Idaho BLM Public Land Office |
Detailed Description
Verified geothermal thermal soaking spring in Idaho County, Idaho. Features natural pool formations and mineral waters.
Directions & Trailhead Access
Located at GPS coordinates 43.87, -116.59 in Idaho. Access via local US Forest Service/BLM roads.
Frequently Asked Questions: Upper Idaho Hot Springs
Is Upper Idaho Hot Springs free?+
Upper Idaho Hot Springs in Idaho Area, Idaho is 100% free to access on public land with zero admission fees.
What temperature is Upper Idaho Hot Springs?+
Upper Idaho Hot Springs maintains an average soaking water temperature of 109°F, with geothermal source temperatures recorded by USGS surveys.
Is Upper Idaho Hot Springs clothing optional?+
Upper Idaho Hot Springs is a swimsuit-required thermal area.
How far is the hike to Upper Idaho Hot Springs?+
Located near Idaho Area, Idaho, Upper Idaho Hot Springs is accessed via local road access followed by a 0.4-mile trail walk.
Where to Stay Near Upper Idaho Hot Springs
Looking for accommodations near Idaho Cabins & Lodging? Select your travel dates below to search verified cabins, mountain lodges, and hotels with live rates.
Community Soaker Reports
Verified Traveler ReviewsUpper Idaho Hot Springs is catalogued in the USGS Geothermal Resources Survey (Circular 790) as a geothermal resource in Idaho County, Idaho. Measured source temperature: 121°F. Average soaking pool temperature: 109°F. Land type: Dispersed Public Land (BLM / USFS). No entrance fee.
Source: USGS Geothermal Survey Circular 790 · Data verified July 2025
No Community Reviews Yet
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