Secret Lemhi Thermal Pools
Secret Lemhi Thermal Pools is a developed thermal soaking spring located in Lemhi County, Idaho Hot Springs near Lemhi Area. Average water soak temperature is 108°F with a geothermal source temperature of 120°F. Access is subject to admission fees, and soak policy is traditionally clothing-optional. Explore nearby springs with our GPS Springs Near Me Finder.
Fact Sheet & Geothermal Specifications
| Average Soak Temp | 108°F |
| Geothermal Source Temp | 120°F |
| Hiking Distance | 1.9 miles (easy) |
| Access Fee | Paid / Resort Fees |
| Clothing Policy | Clothing Optional |
| 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 45.355, -114.985 in Idaho. Access via local US Forest Service/BLM roads.
Frequently Asked Questions: Secret Lemhi Thermal Pools
Is Secret Lemhi Thermal Pools free?+
Secret Lemhi Thermal Pools in Lemhi Area, Idaho is a developed facility requiring day-use admission or resort fees.
What temperature is Secret Lemhi Thermal Pools?+
Secret Lemhi Thermal Pools maintains an average soaking water temperature of 108°F, with geothermal source temperatures recorded by USGS surveys.
Is Secret Lemhi Thermal Pools clothing optional?+
Secret Lemhi Thermal Pools is traditionally clothing-optional for thermal soaking.
How far is the hike to Secret Lemhi Thermal Pools?+
Located near Lemhi Area, Idaho, Secret Lemhi Thermal Pools is accessed via local road access followed by a 1.9-mile trail walk.
Where to Stay Near Secret Lemhi Thermal Pools
Top-rated cabins, mountain lodges, and hotels near Idaho Cabins & Lodging with instant online booking.
Secret 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 Secret Lemhi Thermal Pools in Idaho. Source soak temperature verified at 108°F near Lemhi Area. Public land access verified with zero entrance fee.
Wilderness access guide for Secret Lemhi Thermal Pools: Leashed pets permitted in surrounding trail areas. Practice Leave No Trace principles and pack out all waste.