Blackfoot Reservoir Warm Spring

Caribou County, Idaho · Near Soda Springs
42.9280°N, 111.5920°W · 6,162 ft
72°F 32°F air · Good soaking weather 6,162 ft Short Walk Camping nearby (6.0 mi)
Aerial view of the ground around Blackfoot Reservoir Warm Spring LiDAR bare-earth view of the same ground around Blackfoot Reservoir Warm 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.

Eighteen or nineteen miles from Soda Springs in Caribou County, Idaho, Blackfoot Reservoir Warm Spring runs tepid. Low seventies on file, so warm to the hand and nothing like a hot soak. Owner and access status are absent, and no USGS site is linked. A few hundred feet from the nearest road, filed as a short walk.

Location

Over six thousand feet up, cold on average, with eight feet of snow in a winter. Precipitation runs around two feet. The record gives no road name and no land unit. The spring is close to the road, under four hundred feet. Blackfoot Reservoir Campground, six miles away, is the nearest camping given.

The cold months score best here. Water this cool is for looking at, or a quick dip on a hot day. Nothing on file names an owner, so check before you go. Fees and chemistry are both unrecorded. Blackfoot Reservoir Campground is the overnight option in the record.

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 Blackfoot Reservoir Warm Spring.

Setting
Open ground
Flat, open ground all around.
Highest ground nearby
9 ft above the spring
Within a quarter mile, to the south
Cross-section through the spring

A slice through the ground from southwest to northeast, about 0.6 miles end to end.

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

Heat Below
105 milliwatts per square meter of heat flow

That's about 1½ times the US average of 65. It's higher than at 54% 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
20°
Jan
23°
Feb
30°
Mar
35°
Apr
46°
May
58°
Jun
68°
Jul
67°
Aug
57°
Sep
42°
Oct
30°
Nov
20°
Dec
Annual Precip: 24.3 in Annual Snow: 99.4 in
Best Time to Visit
January Air 20°F · Water 72°F · +52° contrast
December Air 20°F · Water 72°F · +52° contrast
February Air 23°F · Water 72°F · +49° contrast
January offers 48°F more contrast than July
Current Conditions
32°F
N 8.9 mph 80% Good soaking weather
Today 71° Low 45° Mostly Sunny
Spring is +1° warmer
Wednesday 74° Low 50° Sunny 13% precip
Thursday 70° Low 45° Light Rain Likely then Showers And Thunderstorms Likely 73% precip
Spring is +2° warmer
Friday 67° Low 41° Mostly Sunny then Slight Chance Showers And Thunderstorms 18% precip
Spring is +5° warmer
Saturday 68° Low 40° Sunny 7% precip
Spring is +4° warmer
Nearby Camping
Nearby Camping
Blackfoot Reservoir Campground 6.0 mi away

Overview Blackfoot Reservoir Campground is managed by the Bureau of Land Management (BLM) and is located on the southwest end of the Blackfoot Reservoir. The Reservoir covers 18,000 surface acres when full and is the second largest reservoir in southeastern Idaho. The campground has an annual fee season from May 15th - September 15th and is equipped with 16 fully developed campsites, 12 standard campsites, 6 day-use sites, 2 boat ramps, and an RV dump station. The site offers recreational act...

Reservable Yes
Reserve on Recreation.gov →
Mile-High Advisory 6,162 ft

Blackfoot Reservoir Warm Spring sits at 6,162 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.

As an Amazon Associate, we earn from qualifying purchases.

Temperature
72°F
Warm Hot Boiling
Water Temp 72°F (22°C)
Avg Air Temp 42°F
Above Ambient +31°F
Mild soaking conditions September
Access
Road Access Short Walk
Distance to Road 376 ft
Frequently Asked Questions
What is the water temperature at Blackfoot Reservoir Warm Spring?
Blackfoot Reservoir Warm Spring has a water temperature of 72°F (22°C). This is a warm thermal spring.
Where is Blackfoot Reservoir Warm Spring located?
Blackfoot Reservoir Warm Spring is located in Caribou County, Idaho at 6,162 feet elevation, near Soda Springs. Coordinates: 42.9280°N, 111.5920°W.
How do I get to Blackfoot Reservoir Warm Spring?
Blackfoot Reservoir Warm Spring has Short Walk road access (376 ft from the road).
Can I camp near Blackfoot Reservoir Warm Spring?
Yes, Blackfoot Reservoir Campground is located nearby (6.0 miles away).