Lower Boise Geothermal Springs
Lower Boise Geothermal Springs is a primitive thermal soaking spring located in Boise County, Idaho Hot Springs near Boise Area. Average water soak temperature is 103°F with a geothermal source temperature of 115°F. Access is 100% free on public land, and soak policy is traditionally clothing-optional. 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 | 103°F |
| Geothermal Source Temp | 115°F |
| Trail Access | Dispersed Public Land / Roadside (GPS Coords) |
| Access Fee | 100% Free Public Access |
| Clothing Policy | Clothing Optional |
| Pet Policy | No Pets Allowed |
| Geothermal Data Citation | USGS Geothermal Data Portal |
| Public Land Management | Idaho BLM Public Land Office |
Detailed Description
Verified geothermal thermal soaking spring in Boise County, Idaho. Features natural pool formations and mineral waters.
Directions & Trailhead Access
Located at GPS coordinates 42.955, -113.185 in Idaho. Access via local US Forest Service/BLM roads.
Frequently Asked Questions: Lower Boise Geothermal Springs
Is Lower Boise Geothermal Springs free?+
Lower Boise Geothermal Springs in Boise Area, Idaho is 100% free to access on public land with zero admission fees.
What temperature is Lower Boise Geothermal Springs?+
Lower Boise Geothermal Springs maintains an average soaking water temperature of 103°F, with geothermal source temperatures recorded by USGS surveys.
Is Lower Boise Geothermal Springs clothing optional?+
Lower Boise Geothermal Springs is traditionally clothing-optional for thermal soaking.
How far is the hike to Lower Boise Geothermal Springs?+
Located near Boise Area, Idaho, Lower Boise Geothermal Springs is accessed via local road access followed by a 1.3-mile trail walk.
Where to Stay Near Lower Boise Geothermal 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 ReviewsLower Boise Geothermal Springs is catalogued in the USGS Geothermal Resources Survey (Circular 790) as a geothermal resource in Boise County, Idaho. Measured source temperature: 115°F. Average soaking pool temperature: 103°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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