Cox Hot Springs
Frank Church Wilderness, Idaho, United States
- Location
- Frank Church Wilderness, Idaho, United States
- Water type
- iron-rich
- Temperature
- 38 °C
- pH
- 6.3
Water profile
Thermicity
Neutral
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
Cox Hot Springs lies deep within the Frank Church Wilderness, a vast protected wilderness area in Idaho. This iron-rich spring, reachable only via remote trails, reaches around 38 °C.
Insider tip — The Frank Church-River of No Return Wilderness in central Idaho is the largest wilderness area in the continental United States — nearly 4 million acres of roadless terrain surrounding the turbulent Salmon River. Cox Hot Springs in this extraordinary landscape represents the backcountry hot spring experience at its most remote and rewarding: iron-rich thermal pools accessible only by multi-day wilderness journey through one of North America's most pristine river corridors.
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.