Rich in active gases or metals — a strong mineral character.
Buoyancy
Standard buoyancy
LowHigh
Soft water — natural, classic buoyancy.
FerBicarbonatesManganèse
This is a dynamic list of hot springs in the United States. The Western states in particular are known for their thermal springs: Alaska, Arizona, California, Colorado, Idaho, Montana, Nevada, New Mexico, Oregon, Utah, Washington, Wyoming; but there are interesting hot springs in other states throughout the country. Indigenous peoples' use of thermal springs can be traced back 10,000 years, per archaeological evidence of human use and settlement by Paleo-Indians. These geothermal resources provided warmth, mineral water, and cleansing. Hot springs are considered sacred by several Indigenous cultures, and along with sweat lodges have been used for ceremonial purposes. Since ancient times, humans have enjoyed hot springs and public baths within a long thermal tradition. Bathing in hot, mineral water is an ancient ritual. The Latin phrase sanitas per aquam means "health through water", reflecting a long-standing thermal bathing culture in natural hot springs.
Insider tip — The Sulphur Springs area of northwestern Arkansas sits within the Ozark Plateau, where mineral-laden groundwater percolates through ancient limestone and iron-bearing rock layers. These springs have attracted visitors since the 19th century when they were believed to cure a range of ailments. The surrounding Ozark forest gives the springs a secluded, forested character distinct from the more famous Hot Springs National Park to the south. Visit in autumn when the hardwood canopy turns brilliant shades of red and gold.