Brockman Creek Hot Spring

Bonneville County, Idaho · Near Ammon
43.2100°N, 111.4950°W · 6,256 ft
95°F 40°F air · Good soaking weather 6,256 ft Open Roadside SDOL Camping nearby (9.8 mi)
Aerial view of the ground around Brockman Creek Hot Spring LiDAR bare-earth view of the same ground around Brockman 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.

Brockman Creek Hot Spring sits on Idaho Department of Lands ground in Bonneville County, roughly thirty miles from Ammon, fifty-two feet from Brockman Road. The water is warm, mid nineties, the kind of temperature that counts as a real soak on a cold day. State land with an SRMA designation and open access. Caribou Mountain Guard Station is the camping on record, about ten miles away.

Location

A little over six thousand feet, cold average, eight or nine feet of snow a winter, two feet of precipitation. Roadside, so the approach is trivial once you are on Brockman Road. State land managed by the Idaho Department of Lands, designated SRMA in the record. A 1976 sample gives a slightly acidic pH.

Winter leads the season ranking. Brockman Road is the approach; plowing is not documented. Caribou Mountain Guard Station is the nearest listed overnight. Water in the mid nineties is pleasant and safe. The only chemistry is from 1976. Open access under state rules. No fee recorded.

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 Brockman Creek Hot Spring.

Setting
Hillside
The spring sits on a steep slope that climbs to the east.
Highest ground nearby
188 ft above the spring
Within a quarter mile, to the east
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
115 milliwatts per square meter of heat flow

That's about twice the US average of 65. It's higher than at 67% 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
31°
Mar
36°
Apr
46°
May
58°
Jun
67°
Jul
66°
Aug
56°
Sep
41°
Oct
28°
Nov
19°
Dec
Annual Precip: 25.1 in Annual Snow: 103.9 in
Best Time to Visit
December Air 19°F · Water 95°F · +76° contrast
January Air 20°F · Water 95°F · +75° contrast
February Air 23°F · Water 95°F · +72° contrast
December offers 48°F more contrast than July
Current Conditions
40°F
70% Good soaking weather
Today 70° Low 42° Mostly Sunny
Spring is +25° warmer
Wednesday 73° Low 47° Sunny 13% precip
Spring is +22° warmer
Thursday 70° Low 42° Light Rain Likely then Showers And Thunderstorms Likely 71% precip
Spring is +25° warmer
Friday 65° Low 38° Slight Chance Light Rain then Slight Chance Showers And Thunderstorms 23% precip
Spring is +30° warmer
Saturday 67° Low 38° Sunny 14% precip
Spring is +28° warmer
Water Chemistry Sampled 1976-10-19

The water at Brockman Creek Hot Spring is slightly acidic (pH 6.4). It is notably rich in calcium (may support bone density and joint health), magnesium (known for muscle relaxation and stress relief), and sodium (supports circulation and skin hydration).

pH 6.4 Slightly Acidic
pH influences mineral absorption through skin
Calcium 150 mg/L
May support bone density and joint health
Magnesium 41 mg/L
Known for muscle relaxation and stress relief
Sodium 2,100 mg/L
Supports circulation and skin hydration
Sulfate 2,500 mg/L
Traditionally used for skin conditions and inflammation
Chloride 590 mg/L
Natural antiseptic with skin health benefits
Nearby Camping
Nearby Camping
Caribou Mountain Guard Station 9.8 mi away

Overview Caribou Mountain and the National Forest are named after a man known as "Cariboo Jack," who discovered gold in this area in 1870. He was an adventurous man who became a local legend. Today, the guard station on Caribou Mountain is a haven for adventurers who enjoy a variety of recreational activities. The guard station can be accessed by car during the warmer months, but only snowmobiles or skis can be used in winter. Guests should be prepared to make the 6-mile trek with all the...

Reservable Yes
Reserve on Recreation.gov →
Mile-High Advisory 6,256 ft

Brockman Creek Hot Spring sits at 6,256 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
95°F
Warm Hot Boiling
Water Temp 95°F (35°C)
Avg Air Temp 41°F
Above Ambient +54°F
Good soaking conditions September
Access
Open
Road Access Roadside
Nearest Road Brockman Road
Distance to Road 52 ft
Land
Ownership State
Agency SDOL
Designation SRMA
Unit Idaho Department of Lands
Manager SDOL
Protection 3 - Protected, subject to extractive use
Frequently Asked Questions
What is the water temperature at Brockman Creek Hot Spring?
Brockman Creek Hot Spring has a water temperature of 95°F (35°C). This is a warm thermal spring.
Where is Brockman Creek Hot Spring located?
Brockman Creek Hot Spring is located in Bonneville County, Idaho at 6,256 feet elevation, near Ammon. Coordinates: 43.2100°N, 111.4950°W.
How do I get to Brockman Creek Hot Spring?
Brockman Creek Hot Spring has Roadside road access, with the nearest road being Brockman Road (52 ft from the road).
Is Brockman Creek Hot Spring free to visit?
Brockman Creek Hot Spring has Open access. It is managed by SDOL.
Can I camp near Brockman Creek Hot Spring?
Yes, Caribou Mountain Guard Station is located nearby (9.8 miles away).
What minerals are in the water at Brockman Creek Hot Spring?
Water chemistry analysis shows the presence of pH, Calcium, Magnesium, Sodium, Sulfate, Chloride. The pH is 6.4 (slightly acidic).
Sources: USGS NWIS