Geologic maps

Mineral Resources Online Spatial Data: Interactive maps and downloadable data for regional and global Geology, Geochemistry, Geophysics, and Mineral Resources.

Geologic maps SGMC geologic units SGMC contacts SGMC structures Alaska geology Hawaii geology Puerto Rico geology Geographic reference OpenStreetMap Shaded relief US States US Counties US county names USGS map quadrangles

Need more? You can View, Download, and Understand this data source at https://MRData.usgs.gov/.