Upper Lemhi Thermal Pools
Upper Lemhi Thermal Pools is a primitive thermal soaking spring located in Lemhi County, Idaho Hot Springs near Lemhi Area. Average water soak temperature is 107°F with a geothermal source temperature of 119°F. Access is 100% free on public land, and soak policy is swimsuit required. Explore nearby springs with our GPS Springs Near Me Finder.
Fact Sheet & Geothermal Specifications
| Average Soak Temp | 107°F |
| Geothermal Source Temp | 119°F |
| Hiking Distance | 1.6 miles (strenuous) |
| 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 Lemhi County, Idaho. Features natural pool formations and mineral waters.
Directions & Trailhead Access
Located at GPS coordinates 45.19, -116.83 in Idaho. Access via local US Forest Service/BLM roads.
Frequently Asked Questions: Upper Lemhi Thermal Pools
Is Upper Lemhi Thermal Pools free?+
Upper Lemhi Thermal Pools in Lemhi Area, Idaho is 100% free to access on public land with zero admission fees.
What temperature is Upper Lemhi Thermal Pools?+
Upper Lemhi Thermal Pools maintains an average soaking water temperature of 107°F, with geothermal source temperatures recorded by USGS surveys.
Is Upper Lemhi Thermal Pools clothing optional?+
Upper Lemhi Thermal Pools is a swimsuit-required thermal area.
How far is the hike to Upper Lemhi Thermal Pools?+
Located near Lemhi Area, Idaho, Upper Lemhi Thermal Pools is accessed via local road access followed by a 1.6-mile trail walk.
Where to Stay Near Upper Lemhi Thermal Pools
Top-rated cabins, mountain lodges, and hotels near Idaho Cabins & Lodging with instant online booking.
Upper Lemhi Thermal Pools Cabins & Spa Lodge
Mountain View Hotel (Lemhi Area)
USGS Field Data & Community Soaker Reports
Official USGS Geothermal Survey Logs & Verified Traveler ReportsOfficial USGS geothermal survey record for Upper Lemhi Thermal Pools in Idaho. Source soak temperature verified at 107°F near Lemhi Area. Public land access verified with zero entrance fee.
Wilderness access guide for Upper Lemhi Thermal Pools: Leashed pets permitted in surrounding trail areas. Practice Leave No Trace principles and pack out all waste.