skip navigation link
Tsunamis Earthquakes Volcanoes
geyser at Yellowstone National Park

Geothermal Energy

Geothermal energy is heat derived from Earth's interior.
Resources include hot springs and wells, hot dry rock, and even molten rock.
These may be converted into heat and electricity.

Compiled by George W. Berry, Paul J. Grimm, and Joy A. Ikelman: NOAA KGRD No. 12.
This compilation was supported in part by the U.S. National Science Foundation under grant EAR-8716958.

Thermal Springs List for the United States (not updated) is available via Download and Interactive Map Viewer.
The content has not been updated since 1980, its original publication date.

These data contain 1661 hot springs for the United States.