Are there geologic maps or publications for where I live?

Detailed geologic mapping has not been completed for the entire United States, but maps are available for most locations.

• Geologic maps at many scales and from many sources are listed in the National Geologic Map Database.
• Some geologic maps can be purchased in hard copy through the USGS Store.
• Download digital geologic maps for entire states from the USGS Mineral Resources Online Geospatial Data (MRDATA) website. Scroll down to the "Geologic Data" section.
• Contact your state geological survey. Many state geological surveys have detailed maps that can be downloaded or purchased.
• The USGS Publications Warehouse lists all published USGS geologic maps (which are also on the National Geologic Map Database). Geologic maps and publications are often referenced to county names and/or topographic quadrangle names, so try searching on those keywords along with other locality keywords.
• Your public library might also have good resources.