Sacajawea Hot Springs

Checked October 2026 · Sources

Sacajawea Hot Springs is a wild soak in the Sawtooth National Forest, Idaho, about 56 minutes' drive from Stanley: 153 F water at the source (1980 survey), roadside access, snow likely October to May.

Wild
Roadside

Directions

Drive timecomputed

about 56 min
42 mi from Stanley, no traffic

From your town or ZIP

Drive times computed with GraphHopper; map data OpenStreetMap contributors.

The facts

Water: 153 F at the source, not the pool
Quoted from the NOAA Thermal Springs List, checked Oct 11, 2026 (1980 survey), entry SACAJAWEA HOT SPRINGS
Walk: Roadside: 0 miles one way from road access on Grandjean Road
Computed on an OpenStreetMap foot route · start 44.16040, -115.17805
Fee: Not paying a recreation fee is prohibited, and the fine for a first offense of nonpayment may not exceed $100. Forest Service general rule
No fee posted for this spring that we found (checked Oct 13, 2026)
What the Forest Service says
Exact wording: Forest Service rules page.
Permit or reservation: None posted by the agency
Checked on the Forest Service, checked Oct 14, 2026
Clothing: Being publicly nude is prohibited on a national forest only when an order says so; the regulation lists it among the things a forest order can prohibit. Forest Service general rule
What the Forest Service says
Exact wording: Forest Service rules page.
Dogs: At Forest Service developed recreation sites, an animal other than a service animal must be crated, caged, on a leash of 6 feet or less, or otherwise under physical restrictive control, and may not be brought into a swimming area. Forest Service general rule
What the Forest Service says
Exact wording: Forest Service rules page.
Snow: Likely October to May
Computed from NOAA snowfall, 2023 to 2026 seasons
Managed by: USDA Forest Service, Sawtooth National Forest (Sawtooth National Recreation Area)
Last checked: October 2026

Trail and trailhead

Road access (Grandjean Road)

Distance: Roadside, 0 miles
Computed on an OpenStreetMap foot route
Start: Road access (Grandjean Road)
44.16040, -115.17805

Water temperature

153 F at the source, from NOAA's Thermal Springs List (1980 survey). That is where the water leaves the ground; the pool you sit in is cooler.

Quoted from the NOAA Thermal Springs List, checked Oct 11, 2026 (1980 survey), entry SACAJAWEA HOT SPRINGS

Fees and rules

Do you have to pay to go to Sacajawea Hot Springs?

No fee posted for this spring that we found (checked Oct 13, 2026). Forest Service general rule

Forest Service general rule: see The facts.

Do you need a permit or reservation for Sacajawea Hot Springs?

None is posted. not posted

Checked on the Forest Service, checked Oct 14, 2026

Clothing and dogs

Clothing

Forest Service general rule Forest Service general rule: see The facts.

Dogs

Forest Service general rule Forest Service general rule: see The facts.

Seasons and winter access

Snow likely October to May at the spring.

Snow likelySnow not likely

Computed from NOAA snowfall, 2023 to 2026 seasons

Before you go

No permit or reservation is posted.
Snow likely October to May.

Getting there

Drive times from each town's center, no traffic (computed).

Stanley, IdahoHot springs near Stanleyabout 56 min42 mi Ketchum, IdahoHot springs near Ketchumabout 2 h 26 min103.3 mi Sun Valley, IdahoHot springs near Sun Valleyabout 2 h 28 min103.5 mi

Google Maps Apple Maps

Both open at the start, road access on Grandjean Road, not at the pool.

Idaho. Tap the map for directions. Outline: US Census, public domain.

Camping near Sacajawea Hot Springs

Grandjean Campground

"Grandjean Campground is composed of 31 campsites near the border of the Sawtooth Wilderness and the Boise National Forest. All sites are first-come, first-serve. ... Natural hot springs are 1.5 mile away."

Quoted from the Forest Service, checked Oct 14, 2026

Nearby hot springs (6)

Kirkham Hot SpringsNear Stanley · Idahoabout 37 mindrive Sunbeam Hot SpringsNear Stanley · Idahoabout 74 mindrive Russian John Warm SpringNear Ketchum · Idahoabout 2 h 1 mindrive Rocky Canyon Hot SpringsNear Boise · Idahoabout 2 h 6 mindrive Roystone Hot SpringsNear Boise · Idahoabout 2 h 9 mindrive Gold Fork Hot SpringsNear McCall · Idahoabout 2 h 57 mindrive

All 20 hot springs in Idaho Pacific Northwest hot springs (36)

Questions

Is Sacajawea Hot Springs free?

Forest Service general rule Forest Service general rule: see The facts.

How long is the hike to Sacajawea Hot Springs?

There is no walk: the spring is at the road.

Is Sacajawea Hot Springs clothing optional?

Forest Service general rule Forest Service general rule: see The facts.

Can I bring my dog?

Forest Service general rule Forest Service general rule: see The facts.

Can you camp at Sacajawea Hot Springs?

"Grandjean Campground is composed of 31 campsites near the border of the Sawtooth Wilderness and the Boise National Forest. All sites are first-come, first-serve. ... Natural hot springs are 1.5 mile away."

Quoted from the Forest Service, checked Oct 14, 2026

Sources and last checked

Page last checked October 2026 (the oldest date below).

ncei.noaa.gov/access/metadata/landing-page/bin/iso: water temperatureChecked Oct 11, 2026
fs.usda.gov/r04/sawtooth/recreation/grandjean-campground: campingChecked Oct 14, 2026
Walk: roadside, computed on an OpenStreetMap foot route (FOSSGIS routing, foot profile) from 44.16040, -115.17805Map data OpenStreetMap contributors, ODbL
Drive times from Stanley, Ketchum, Sun Valley: computed with GraphHopper 11.1, car profile, no trafficOpenStreetMap extract of Oct 12, 2026
Snow months (Oct, Nov, Dec, Jan, Feb, Mar, Apr, May): computed from NOAA snowfall, 2023 to 2026 seasonsMethod page explains the rule
Photo: Mitchell Friedman, Flickr, CC BY 2.0Checked by eye Oct 12, 2026

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