ThermaeExplore the map →

Bonneville Hot Springs

Cascade, Idaho, United States
Bonneville Hot Springs
Location
Cascade, Idaho, United States
Water type
iron-rich
Temperature
38 °C
pH
6.3

Water profile

Thermicity
Neutral
38 °C
LowHigh

Soothing — neither hot nor cold, perfect balance.

Mineralisation
Bio-active
LowHigh

Rich in active gases or metals — a strong mineral character.

Buoyancy
Standard buoyancy
LowHigh

Soft water — natural, classic buoyancy.

FerBicarbonatesManganèse

Listed in order going downstream:British Columbia:

Headwaters to the Canada–United States border:

Canal Flats

Fairmont Hot Springs

Windermere

Invermere

Radium Hot Springs

Spillimacheen

Golden

Mica Creek

Revelstoke

Nakusp

Castlegar

Trail

Washington:

Canada–United States border to Grand Coulee Dam:

Northport

Kettle Falls

Inchelium

Grand Coulee

Coulee Dam

Grand Coulee Dam to Wenatchee:

Elmer City

Bridgeport

Brewster

Pateros

Entiat

West Wenatchee

Wenatchee

East Wenatchee

South Wenatchee

South Wenatchee to Wallula:

Rock Island

Vantage

Desert Aire

Richland

Kennewick

Pasco

Burbank

Wallula

Washington-Oregon border:

Umatilla to The Dalles:

Umatilla, Oregon

Irrigon, Oregon

Boardman, Oregon

Roosevelt, Washington

Arlington, Oregon

Rufus, Oregon

Maryhill, Washington

Biggs Junction, Oregon

Wishram, Washington

Dallesport, Washington

The Dalles, Oregon

The Dalles to Portland:

Lyle, Washington

Rowena, Oregon

Mosier, Oregon

Bingen, Washington

White Salmon, Washington

Hood River, Oregon

Carson River Valley, Washington

Stevenson, Washington

Cascade Locks, Oregon

North Bonneville, Washington

Washougal, Washington

Camas, Washington

Vancouver, Washington

Portland to the mouth of the Columbia:

Portland, Oregon

St. Helens, Oregon

Columbia City, Oregon

Kalama, Washington

Goble, Oregon

Prescott, Oregon

Rainier, Oregon

Longview, Washington

Cathlamet, Washington

Astoria, Oregon

Warrenton, Oregon

Chinook, Washington

Ilwaco, Washington

Insider tip — Bonneville Hot Springs flows into natural pools along a forested canyon in central Idaho, offering a classic backcountry soak experience. The iron-rich waters emerge at a comfortable bathing temperature and have carved mineral-stained terraces into the rocky streambed. Access requires a moderate hike, keeping crowds low and the setting genuinely wild. Visit in autumn when the aspens turn gold and the steam rises visibly against cool mountain air.
Find hotels nearby →Tickets & activities →See the map & practical info →

Nearby

Frequently asked questions

How hot is the water?
The water is neutral here, around 38 °C — a perfect balance, neither too hot nor too cold.
What type of water is found here?
This spot features iron-rich water.
What is the best season to visit?
The most favourable period for this spot is: Toute l'année (idéal automne-hiver).