Overview
Chena Hot Springs are a system of thermal mineral springs located within the Yukon-Tanana Plateau near the town of Chena Hot Springs, approximately 50 miles northeast of Fairbanks, Alaska.
The springs consist of several hot soaking pools and a rock-lined warm lake only accessible to those over age 18. There is also a glassed-in indoor 90 °F swimming pool located at an onsite lodge that is powered by a geothermal power plant nearby.
There is now a small 8 person Jacuzzi outdoors heated to the same temperature as the indoor pool. In the winter there is a covered path to the lake.
A rare form of quartz-encrusted zeolite, yugawaralite, was found near Chena Hot Springs. It has also been found near hot springs in Japan and Iceland.
From Wikipedia (CC BY-SA 4.0).