The U.S. Geological Survey's (USGS) Mineral Resources Program's interactive Geologic Map of U.S. States provides a large amount of information on geology, natural resources, and environmental data for every U.S. state, including:
- Surface and bedrock geology
- Mineral resources
- Geochemical and geophysical data
- Water monitoring sites
- Partial soil and land use data
All of the maps are also available as Google Earth files that can be downloaded and used on personal computers and mobile devices.