Baranof Warm Springs (thermal mineral springs)
Baranof Warm Springs are a series of ten geothermal mineral springs located in the small community of Baranof Warm Springs in Sitka, Alaska.
| Baranof Warm Springs | |
|---|---|
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| Location | Sitka, Alaska |
| Coordinates | 57°5′6″N 134°50′20.4″W |
| Type | Geothermal |
| Temperature | 124°F/51°C |
History
The springs were originally used by the Tlingit of Angoon; later people of western descent discovered the springs in 1891.[1]
Geography and geology
The springs are located on the north side of the Baronof River approximately 500 feet downstream from the Baranof Lake inlet. The springs flow from deposits of gravel, silt and quartz diorite boulder and bedrock.[2]
Water profile
The hot mineral water emerges from the ground at a temperature of 124°F/51°C.[3] The water composition is sodium carbonate type, with large proportions of silica.[2]
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References
- Kirchoff, M. J. (1990). Baranof Island: An Illustrated History. Juneau: Alaska Cedar Press. ISBN 0-9624904-0-7.
- Soward, Kenneth S. "Geologic Investigations of Proposed Powersites at Baranof and Carbon Lakes Baranof Island, Alaska" (PDF). USGS,gov. USGS. Retrieved 29 June 2020.
- Berry, George W.; Grim, Paul J.; Ikelman, Joy A. (1980). Thermal Springs List for the United States. Boulder, Colorado: National Oceanic and Atmospheric Administration.
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