| Summary: | Chena Hot Springs is located in the east-central part of the Alaska within the Yukon-Tanana Plateau, about 75 km east of Fairbanks. It is a moderate temperature deep circulation system typical of interior Alaska. The main shallow upflow zone is about 2000 ft long and 300 ft wide. The system is located at the edge of a granitic body where deep circulating geothermal waters reach the surface by way of fractures along the contact with surrounding host rocks. The hot springs discharge at temperatures around 165 °F (74 °C); nevertheless, the geochemical data suggest the source temperatures to be around 250 °F (121 °C). With current drilling activities to 1020 ft (311 m), temperatures of up to 176 °F (80 °C)
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