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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.

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