The State Geologic Map Compilation (SGMC) Geodatabase of the Conterminous United States

Online link https://doi.org/10.5066/F7WH2N65
Description A collection of state geological maps using the same underlying database structure. Updates the preliminary state geologic map compilation released in 2005, with corrections and seven updated state geologic maps as well as seven new state geologic maps.
Originators Horton, John D. (Digital compiler)
Publication U.S. Geological Survey data release F7WH2N65