Lower Bowery Hot Spring

Blaine County, Idaho · Near Sun Valley
43.9740°N, 114.4990°W · 6,820 ft
129°F 24°F air · Good soaking weather 6,820 ft Open Short Walk US Forest Service Camping nearby (12.7 mi)
Aerial view of the ground around Lower Bowery Hot Spring LiDAR bare-earth view of the same ground around Lower Bowery 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.

Lower Bowery Hot Spring is a hot source in the Sawtooth National Forest, Blaine County, Idaho, around twenty-two miles from Sun Valley. The public access on record is open. Out of the ground it comes hot enough to need mixing with something cooler before a soak, and the only chemistry reading is from 1980. High country, cold year-round on average.

Location

The nearest road, unnamed in the record, is a short walk away. Sawtooth National Forest land, no wilderness designation noted. This is high terrain, up near seven thousand feet, where the year runs cold on average and winter drops something close to eleven feet of snow. What lies between road and water goes unrecorded.

Winter tops the record's list of months, and at this elevation that means deep snow on the way in. The closest camping on file is the Wood River group overnight area, tents only, nearly thirteen miles off. The water will burn if you get in without testing it first. Nothing on file describes pools or how the water is cooled.

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 Lower Bowery Hot Spring.

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

That's about 2½ times the US average of 65. It's higher than at 94% 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
22°
Feb
28°
Mar
33°
Apr
42°
May
53°
Jun
64°
Jul
63°
Aug
54°
Sep
39°
Oct
28°
Nov
20°
Dec
Annual Precip: 25.0 in Annual Snow: 129.7 in
Best Time to Visit
December Air 20°F · Water 129°F · +109° contrast
January Air 22°F · Water 129°F · +107° contrast
February Air 22°F · Water 129°F · +107° contrast
December offers 44°F more contrast than July
Current Conditions
24°F
S 12.1 mph 91% Good soaking weather
Today 59° Low 38° Sunny
Spring is +70° warmer
Wednesday 64° Low 43° Sunny 11% precip
Spring is +65° warmer
Thursday 57° Low 39° Light Rain Likely then Showers And Thunderstorms 84% precip
Spring is +72° warmer
Friday 58° Low 38° Chance Light Rain 29% precip
Spring is +71° warmer
Saturday 61° Low 39° Sunny 9% precip
Spring is +68° warmer
Water Chemistry Sampled 1980-08-07

The water at Lower Bowery Hot Spring is slightly alkaline (pH 8.5).

pH 8.5 Slightly Alkaline
pH influences mineral absorption through skin
Calcium 24 mg/L
May support bone density and joint health
Magnesium 6 mg/L
Known for muscle relaxation and stress relief
Sodium 80 mg/L
Supports circulation and skin hydration
Sulfate 120 mg/L
Traditionally used for skin conditions and inflammation
Chloride 13 mg/L
Natural antiseptic with skin health benefits
Nearby Camping
Nearby Camping
Wood River Group Overnight Area (Tent Only) 12.7 mi away

Overview Wood River Group Overnight Area is located inside the Wood River Campground, which has 30 single campsites for RV's and tent camping, which are available for use on a first-come first-served basis. This campground is located on the banks of the beautiful Big Wood River at an elevation of 6400 feet. Ketchum, Idaho is conveniently close, only 10 miles south. Visitors enjoy fishing, tubing and exploring local trails.Recreation This site is part of the Sawtooth National Recreation Area,...

Reservable Yes
Reserve on Recreation.gov →
Mile-High Advisory 6,820 ft

Lower Bowery Hot Spring sits at 6,820 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 27% stronger than at sea level, so bring sunscreen and drink more water than you normally would.

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Temperature
129°F
Warm Hot Boiling
Water Temp 129°F (54°C)
Avg Air Temp 39°F
Above Ambient +90°F
Great soaking conditions September
Access
Open
Road Access Short Walk
Distance to Road 0.2 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 Lower Bowery Hot Spring?
Lower Bowery Hot Spring has a water temperature of 129°F (54°C). This is considered a hot spring, well above body temperature.
Where is Lower Bowery Hot Spring located?
Lower Bowery Hot Spring is located in Blaine County, Idaho at 6,820 feet elevation, near Sun Valley. Coordinates: 43.9740°N, 114.4990°W.
How do I get to Lower Bowery Hot Spring?
Lower Bowery Hot Spring has Short Walk road access (0.2 mi from the road).
Is Lower Bowery Hot Spring free to visit?
Lower Bowery Hot Spring has Open access. It is managed by US Forest Service.
Can I camp near Lower Bowery Hot Spring?
Yes, Wood River Group Overnight Area (Tent Only) is located nearby (12.7 miles away).
What minerals are in the water at Lower Bowery Hot Spring?
Water chemistry analysis shows the presence of pH, Calcium, Magnesium, Sodium, Sulfate, Chloride. The pH is 8.5 (slightly alkaline).
Is it safe to soak at Lower Bowery Hot Spring?
With care. At 129°F Lower Bowery 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