Bear Valley Hot Spring

Valley County, Idaho · Near Cascade
44.4450°N, 115.2390°W · 6,210 ft
Warm 6,210 ft Open Hike US Forest Service Camping nearby (6.5 mi)
Aerial view of the ground around Bear Valley Hot Spring LiDAR bare-earth view of the same ground around Bear Valley 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.

Bear Valley Hot Spring lies in the Boise National Forest, Valley County, Idaho, forty miles from Cascade. The record tags it warm and gives no temperature, so no soak can be promised. What is on file is a 1979 sample with a very alkaline pH. Access is open. You hike in, about two and a half miles beyond the nearest road.

Location

High, over six thousand feet, and buried in winter: the snow total is near fifteen feet. Average temperature is cold. Rain and snow together make this a wet part of the state by inches. The approach is a two-and-a-half-mile hike on Forest Service land. Banner Creek Campground is six or seven miles away by the record.

There is no season ranking to give, since the temperature was never measured. Fifteen feet of snow means the hike will be snowbound much of the year. Banner Creek is the listed campground. The only chemistry is a 1979 sample, strongly alkaline. Do not plan around a warm soak.

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 Bear Valley Hot Spring.

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

A slice through the ground from north to south, about 0.6 miles end to end.

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

Heat Below
116 milliwatts per square meter of heat flow

That's about twice the US average of 65. It's higher than at 68% 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
22°
Jan
24°
Feb
30°
Mar
34°
Apr
42°
May
52°
Jun
64°
Jul
64°
Aug
54°
Sep
39°
Oct
27°
Nov
19°
Dec
Annual Precip: 32.5 in Annual Snow: 175.2 in
Current Conditions
Today 63° Low 40° Sunny
Wednesday 70° Low 45° Sunny
Thursday 63° Low 43° Showers And Thunderstorms 84% precip
Friday 62° Low 40° Chance Rain Showers 45% precip
Saturday 66° Low 42° Sunny 9% precip
Water Chemistry Sampled 1979-08-01

The water at Bear Valley 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 76 mg/L
Supports circulation and skin hydration
Sulfate 54 mg/L
Traditionally used for skin conditions and inflammation
Chloride 12 mg/L
Natural antiseptic with skin health benefits
Nearby Camping
Nearby Camping
Banner Creek Campground 6.5 mi away

A nice campground along Highway 21 in the trees with a small creek running through. Campground has 5 campsites with picnic tables and fire rings with cooking grills. The campground amemities include a vault toilet. No drinking water is available and the campground is limited to trailers and motorhomes up to 32 feet long; there are no hookups within the campground.

Reserve on Recreation.gov →
Mile-High Advisory 6,210 ft

Bear Valley Hot Spring sits at 6,210 feet above sea level, way above the mile-high mark. You may not feel the altitude strongly, but hot water still dehydrates you faster at elevation. UV is about 25% stronger than at sea level, so bring sunscreen and drink more water than you normally would.

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Temperature
Warm
Warm Hot Boiling
Avg Air Temp 39°F
Access
Open
Road Access Hike
Distance to Road 2.5 mi
Land
Ownership Federal
Agency US Forest Service
Designation National Forest
Unit Boise National Forest
Manager US Forest Service
Protection 3 - Protected, subject to extractive use
Frequently Asked Questions
What is the water temperature at Bear Valley Hot Spring?
Bear Valley Hot Spring is classified as warm. An exact temperature measurement has not been recorded.
Where is Bear Valley Hot Spring located?
Bear Valley Hot Spring is located in Valley County, Idaho at 6,210 feet elevation, near Cascade. Coordinates: 44.4450°N, 115.2390°W.
How do I get to Bear Valley Hot Spring?
Bear Valley Hot Spring has Hike road access (2.5 mi from the road).
Is Bear Valley Hot Spring free to visit?
Bear Valley Hot Spring has Open access. It is managed by US Forest Service.
Can I camp near Bear Valley Hot Spring?
Yes, Banner Creek Campground is located nearby (6.5 miles away).
What minerals are in the water at Bear Valley Hot Spring?
Water chemistry analysis shows the presence of pH, Calcium, Sodium, Sulfate, Chloride. The pH is 9.5 (alkaline).
Sources: USGS NWIS