Willow Creek Hot Spring

Camas County, Idaho · Near Fairfield
43.6370°N, 115.1300°W · 5,242 ft
131°F 5,242 ft Open Short Walk US Forest Service Camping nearby (3.0 mi)
Aerial view of the ground around Willow Creek Hot Spring LiDAR bare-earth view of the same ground around Willow Creek Hot Spring
Aerial LiDAR bare earth

Drag the handle to compare the two views. The orange dot marks the spring, in a frame about three quarters of a mile wide.

A hot spring in Camas County, Idaho, on Sawtooth National Forest ground and a long drive from anywhere; Fairfield is the nearest town at around 26 miles. The water runs hot, well above what most people would sit in without letting it cool, and it is strongly alkaline. Access is open. Forest Service land, no fee on record.

Location

Willow Creek Road gets you within about three quarters of a mile. From there it is a walk. This is mountain country, a little over a mile high, and the snow total runs to twelve feet in an average winter, which will shut the road for months. The place gets a fair amount of rain on top of that.

Winter, December into February, is what comes up as the best season here, odd for a spot under that much snow, so find out whether Willow Creek Road is plowed before counting on a winter soak. Baumgartner Campground is three miles off. The water is hot enough to burn if you drop straight in; test it and let a pool cool. The chemistry comes from a 1981 sample.

Terrain

Aircraft with laser scanners measured this ground to within inches. The scan strips out trees and buildings, leaving the bare shape of the land around Willow Creek Hot Spring.

Setting
Canyon floor
Steep ground climbs away on both sides of the spring.
Highest ground nearby
570 ft above the spring
Within a quarter mile, to the west
Cross-section through the spring

A slice through the ground from west to east, about 0.6 miles end to end.

Elevation data: USGS 3D Elevation Program. Aerial imagery: USGS The National Map. Public domain.

Heat Below
136 milliwatts per square meter of heat flow

That's about twice the US average of 65. It's higher than at 86% of the springs on this site.

Heat flow measures the warmth working its way up through the ground from deep inside the earth. Where it runs high, rain and snowmelt that seep down through cracks in the rock come back up hot.

Heat flow estimate: Stanford Thermal Earth Model (Aljubran & Horne, 2024), CC BY 4.0.

Monthly Climate
24°
Jan
26°
Feb
32°
Mar
38°
Apr
46°
May
58°
Jun
69°
Jul
68°
Aug
57°
Sep
43°
Oct
31°
Nov
21°
Dec
Annual Precip: 29.6 in Annual Snow: 144.2 in
Best Time to Visit
December Air 21°F · Water 131°F · +110° contrast
January Air 24°F · Water 131°F · +107° contrast
February Air 26°F · Water 131°F · +105° contrast
December offers 48°F more contrast than July
Current Conditions
NNW 1.4 mph
Today 72° Low 41° Sunny
Spring is +59° warmer
Wednesday 78° Low 46° Sunny
Spring is +53° warmer
Thursday 70° Low 42° Showers And Thunderstorms 78% precip
Spring is +61° warmer
Friday 71° Low 40° Mostly Sunny then Slight Chance Rain Showers 22% precip
Spring is +60° warmer
Saturday 74° Low 42° Sunny 5% precip
Spring is +57° warmer
Water Chemistry Sampled 1981-07-16

The water at Willow Creek Hot Spring is alkaline (pH 9.5).

pH 9.5 Alkaline
pH influences mineral absorption through skin
Calcium 2 mg/L
May support bone density and joint health
Sodium 46 mg/L
Supports circulation and skin hydration
Sulfate 23 mg/L
Traditionally used for skin conditions and inflammation
Chloride 3 mg/L
Natural antiseptic with skin health benefits
Where to Stay

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Nearby Camping
Baumgartner Campground 3.0 mi away

Overview Baumgartner Campground is situated alongside the South Fork Boise River, 11 miles from Featherville, Idaho. The area offers excellent fishing, hiking and off-road vehicle riding opportunities. Baumgartner Hot Springs is located within the campground, where visitors can enjoy soaking in the pool while admiring the scenic, natural setting. Recreation The campground's main draw is Baumgartner Hot Springs. The 101-degree water is piped into a large concrete soaking pool. The pool...

Reservable Yes
Reserve on Recreation.gov →
Temperature
131°F
Warm Hot Boiling
Water Temp 131°F (55°C)
Avg Air Temp 43°F
Above Ambient +88°F
Great soaking conditions September
Access
Open
Road Access Short Walk
Nearest Road Willow Creek Road
Distance to Road 0.7 mi
Land
Ownership Federal
Agency US Forest Service
Designation National Forest
Unit Sawtooth National Forest
Manager US Forest Service
Protection 3 - Protected, subject to extractive use
Frequently Asked Questions
What is the water temperature at Willow Creek Hot Spring?
Willow Creek Hot Spring has a water temperature of 131°F (55°C). This is considered a hot spring, well above body temperature.
Where is Willow Creek Hot Spring located?
Willow Creek Hot Spring is located in Camas County, Idaho at 5,242 feet elevation, near Fairfield. Coordinates: 43.6370°N, 115.1300°W.
How do I get to Willow Creek Hot Spring?
Willow Creek Hot Spring has Short Walk road access, with the nearest road being Willow Creek Road (0.7 mi from the road).
Is Willow Creek Hot Spring free to visit?
Willow Creek Hot Spring has Open access. It is managed by US Forest Service.
Can I camp near Willow Creek Hot Spring?
Yes, Baumgartner Campground is located nearby (3.0 miles away).
What minerals are in the water at Willow Creek Hot Spring?
Water chemistry analysis shows the presence of pH, Calcium, Sodium, Sulfate, Chloride. The pH is 9.5 (alkaline).
Is it safe to soak at Willow Creek Hot Spring?
With care. At 131°F Willow Creek Hot Spring is hot enough to need short sessions, fifteen to twenty minutes, and plenty of water. Enter slowly and get out if you feel light-headed.
Sources: USGS NWIS