Sacajawea Hot Springs
Sacajawea Hot Springs is a primitive thermal spring listed in Boise County, Idaho Hot Springs near Lowman. Reported soak temperature is 115°F with a historical source temperature of 115°F — actual conditions may differ. Access is listed as free, and clothing policy is listed as clothing-optional — 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 115°F year-round, outdoor ambient temperatures fluctuate significantly across Idaho. Late spring through autumn offers the most comfortable road access.
Fact Sheet & Geothermal Specifications
| Reported Soak Temp | 115°F |
| Source Temp (Historical) | 115°F |
| Trail Access | Recorded coordinates — access unverified |
| Access Fee | Reported Free — Verify Locally |
| Clothing Policy | Reported Clothing-Optional |
| Pet Policy | Reported Dog-Friendly |
| Geothermal Data Reference | NOAA Thermal Springs List (1980 archive) |
| Check Land Status | Idaho 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
Primitive visitor-built rock pools along the South Fork Payette riverbank beside Grandjean Rd (FR-524), ~5 mi from Hwy 21 near the Grandjean trailhead — sources of 125-160°F cool toward the river; mix with river water. Source scalding; soak quality depends on river level.
Directions & Trailhead Access
Hwy 21 to Grandjean Rd (FR-524), ~5 mi east on gravel; watch for steam above the road.
Frequently Asked Questions: Sacajawea Hot Springs
Is Sacajawea Hot Springs free?+
Sacajawea Hot Springs is listed as free to access in Boise County, Idaho. Fees and rules change — verify current status with the land manager before visiting.
What temperature is Sacajawea Hot Springs?+
Sacajawea Hot Springs has a reported soak temperature of 115°F and a historical source temperature of 115°F in survey records. Historical data may not reflect current conditions — always test water before entering.
Is Sacajawea Hot Springs clothing optional?+
Sacajawea Hot Springs is listed as traditionally clothing-optional in directory records. Confirm current rules before visiting, as policies change.
How do you access Sacajawea Hot Springs?+
Sacajawea Hot Springs is a recorded location in Boise 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 Sacajawea Hot Springs
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Community Soaker Reports
Visitor-submitted reports — not independently verifiedNo Community Reviews Yet
Have you soaked at Sacajawea Hot Springs? Share your water temperature measurements, pool conditions, and road access tips to help fellow travelers!