Lower Custer Mineral Tubs
Lower Custer Mineral Tubs is a primitive thermal soaking spring located in Custer, Idaho Hot Springs near Custer Area. Average water soak temperature is 101°F with a geothermal source temperature of 113°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 | 101°F |
| Geothermal Source Temp | 113°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 Custer, Idaho. Features natural pool formations and mineral waters.
Directions & Trailhead Access
Located at GPS coordinates 44.275, -113.425 in Idaho. Access via local US Forest Service/BLM roads.
Frequently Asked Questions: Lower Custer Mineral Tubs
Is Lower Custer Mineral Tubs free?+
Lower Custer Mineral Tubs in Custer Area, Idaho is 100% free to access on public land with zero admission fees.
What temperature is Lower Custer Mineral Tubs?+
Lower Custer Mineral Tubs maintains an average soaking water temperature of 101°F, with geothermal source temperatures recorded by USGS surveys.
Is Lower Custer Mineral Tubs clothing optional?+
Lower Custer Mineral Tubs is traditionally clothing-optional for thermal soaking.
How far is the hike to Lower Custer Mineral Tubs?+
Located near Custer Area, Idaho, Lower Custer Mineral Tubs is accessed via local road access followed by a 2.5-mile trail walk.
Where to Stay Near Lower Custer Mineral Tubs
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 Custer Mineral Tubs is catalogued in the USGS Geothermal Resources Survey (Circular 790) as a geothermal resource in Custer, Idaho. Measured source temperature: 113°F. Average soaking pool temperature: 101°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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