Rich in active gases or metals — a strong mineral character.
Buoyancy
Standard buoyancy
LowHigh
Soft water — natural, classic buoyancy.
FerBicarbonatesManganèse
Lost Man Hot Spring is a remote, iron-rich hot spring near Lake Mohave, Nevada. Reached only by wild bathing, its open-air pool sits at around 38 °C, a temperature typical of springs scattered across the American Southwest desert.
Insider tip — Lost Man Hot Spring along the Colorado River in the Lake Mohave National Recreation Area is one of several iron-rich springs emerging from the volcanic-metamorphic geology of the Black Mountains along the Nevada-Arizona border. These remote desert springs, accessible only by boat or rugged canyon hike, are among the most isolated thermal experiences in the American Southwest — where the Colorado carved its canyon through ancient volcanic rock heated by deep geologic activity.