Lost Trail Hot Springs
Lost Trail Hot Springs is a resort thermal spring listed in Ravalli County, Montana Hot Springs near Sula. Reported soak temperature is 100°F with a historical source temperature of 100°F — actual conditions may differ. Access is subject to admission fees, and clothing policy is listed as swimsuit-required — always confirm before visiting. Explore nearby springs with our GPS Springs Near Me Finder.
Seasonal Soaking & Best Time to Visit
While geothermal pool temperatures remain a constant 100°F year-round, outdoor ambient temperatures fluctuate significantly across Montana. Late spring through autumn offers the most comfortable road access.
Fact Sheet & Geothermal Specifications
| Reported Soak Temp | 100°F |
| Source Temp (Historical) | 100°F |
| Trail Access | Recorded coordinates — access unverified |
| Access Fee | Paid / Resort Fees |
| Clothing Policy | Reported Clothing Required |
| Pet Policy | Reported No Pets |
| Geothermal Data Reference | NOAA Thermal Springs List (1980 archive) |
| Check Land Status | Montana Land Manager (BLM) |
Verification & Sources
This record was verified against the following source(s):
Reviewed September 2026 · Treat all details as reported — verify before visiting · How we verify our data
Detailed Description
Historic Gallogly Hot Springs, renamed Lost Trail in the 1970s — a secluded stop since the 1890s on US-93 below Gibbons Pass. Natural hot-spring-fed pool, hot tub and dry sauna in Bitterroot NF; cabins and lodge rooms near Chief Joseph ski trails. Fee: Paid pool access; call 406-821-3574 for rates. Pool hours differ from lodge hours; dining room seasonal.
Directions & Trailhead Access
283 Lost Trail Hot Springs Rd, Sula — 85 mi south of Missoula on US-93, 6 mi north of the Idaho line.
Frequently Asked Questions: Lost Trail Hot Springs
Is Lost Trail Hot Springs free?+
Lost Trail Hot Springs is a developed thermal facility near Sula that requires paid admission.
What temperature is Lost Trail Hot Springs?+
Lost Trail Hot Springs has a reported soak temperature of 100°F and a historical source temperature of 100°F in survey records. Historical data may not reflect current conditions — always test water before entering.
Is Lost Trail Hot Springs clothing optional?+
Lost Trail Hot Springs is listed as swimsuit-required in directory records. Confirm current rules before visiting, as policies change.
How do you access Lost Trail Hot Springs?+
Lost Trail Hot Springs is a recorded location in Ravalli County. Exact access, parking, and land status are not verified — check with the local land manager (BLM/USFS/NPS) before visiting.
Where to Stay Near Lost Trail Hot Springs
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Community Soaker Reports
Visitor-submitted reports — not independently verifiedNo Community Reviews Yet
Have you soaked at Lost Trail Hot Springs? Share your water temperature measurements, pool conditions, and road access tips to help fellow travelers!