Monitoring equipment at St. Andrew's Rock requires a large battery ...

Staff from the U.S. Geological Survey and University of Washington maintain equipment and power supply for volcano monitoring equipment at St. Andrew's Rock, Mount Rainier. The station is snow-bound at least six months out of every year, requiring a large battery and solar array to keep the station fully functional. This station includes a three-component seismometer, high sensitivity GPS and tiltmeter.