Soap Lake Natural Spa and Resort

Soap Lake in Grant County, Washington, is a naturally alkaline and saline lake with an extraordinary mineral composition — its water contains over 25 minerals including sodium carbonate, sodium bicarbonate, and sodium sulfate in concentrations that give the water a soapy feel on the skin. Native peoples used the lake's unique water for ceremonial and healing purposes long before European settlement. Early 20th century health resort development brought patients seeking treatment for skin and joint conditions. The town maintains resort facilities drawing from the lake's mineral water.