The North Carolina Geological Survey has produced an interactive online version of its geologic map of North Carolina. Users can click on the individual units for more information, and a PDF of the map is available for download.
In addition to the state geologic map, users can also view information and maps of North Carolina's physiographic provinces and major geologic features.
The National Renewable Energy Laboratory's Geothermal Prospector provides a huge amount of information about geothermal energy in the United States. The interactive map includes: