Baranof Warm Springs

Baranof Warm Springs is a cluster of ten geothermal mineral springs in a small community on Baranof Island in southeast Alaska, about 20 miles east of Sitka within Tongass National Forest. Accessible only by boat, the springs were first used by the Tlingit of Angoon and were later recorded by settlers in 1891. On the north side of the Baranof River near Baranof Lake, hot mineral water rises through gravel, silt, and quartz diorite at about 124 °F. Its sodium carbonate, silica-rich, sulphurous water is channeled into rock-lined soaking pools that cool to about 108 to 110 °F, alongside bath structures and undeveloped springs.

Sitka, Alaska · United States