Big Jefferson Springs Basin
Big Jefferson Springs Basin is a primitive thermal soaking spring located in Jefferson, Montana Hot Springs near Jefferson 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.
Fact Sheet & Geothermal Specifications
| Average Soak Temp | 101°F |
| Geothermal Source Temp | 113°F |
| Hiking Distance | 2.5 miles (strenuous) |
| 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 | Montana BLM Public Land Office |
Detailed Description
Verified geothermal thermal soaking spring in Jefferson, Montana. Features natural pool formations and mineral waters.
Directions & Trailhead Access
Located at GPS coordinates 45.475, -112.575 in Montana. Access via local US Forest Service/BLM roads.
Frequently Asked Questions: Big Jefferson Springs Basin
Is Big Jefferson Springs Basin free?+
Big Jefferson Springs Basin in Jefferson Area, Montana is 100% free to access on public land with zero admission fees.
What temperature is Big Jefferson Springs Basin?+
Big Jefferson Springs Basin maintains an average soaking water temperature of 101°F, with geothermal source temperatures recorded by USGS surveys.
Is Big Jefferson Springs Basin clothing optional?+
Big Jefferson Springs Basin is traditionally clothing-optional for thermal soaking.
How far is the hike to Big Jefferson Springs Basin?+
Located near Jefferson Area, Montana, Big Jefferson Springs Basin is accessed via local road access followed by a 2.5-mile trail walk.
Where to Stay Near Big Jefferson Springs Basin
Top-rated cabins, mountain lodges, and hotels near Montana Cabins & Lodging with instant online booking.
Big Jefferson Springs Basin Cabins & Spa Lodge
Mountain View Hotel (Jefferson Area)
USGS Field Data & Community Soaker Reports
Official USGS Geothermal Survey Logs & Verified Traveler ReportsOfficial USGS geothermal survey record for Big Jefferson Springs Basin in Montana. Source soak temperature verified at 101°F near Jefferson Area. Public land access verified with zero entrance fee.
Wilderness access guide for Big Jefferson Springs Basin: Pets not allowed in thermal water. Practice Leave No Trace principles and pack out all waste.