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  1. National Geologic Map Database - USGS

    2 days ago · U.S. Department of the Interior | U.S. Geological Survey Supported by the National Cooperative Geologic Mapping Program Page Contact Information: Personnel Page Last …

  2. Macrostrat

    With over 225 maps from data providers around the world across every scale, Macrostrat is the world's largest homogenized geologic map database.

  3. Geological map - Wikipedia

    A geological map or geologic map is a special-purpose map made to show various geological features. Rock units or geologic strata are shown by color or symbols.

  4. The National Map - 3D Viewer

    Explore the National Map's 3D Viewer for interactive mapping, elevation profiles, and range ring centroids.

  5. State Geologic Map Compilation

    Apr 23, 2025 · This web map portrays the U.S. Geological Survey's (USGS) State Geologic Map Compilation (SGMC) geodatabase of the conterminous United States. The SGMC represents …

  6. State Geologic Maps - Geology (U.S. National Park Service)

    Jun 20, 2024 · The following links will take you to state geologic maps. Most of the maps are posted and maintained by state geologic survey organizations. To learn more about your state …

  7. Cooperative National Geologic Map | NGMDB

    Explore the Cooperative National Geologic Map, a unified view of our Nation's geology, with interactive layers and geologic data.

  8. Geological Society of America - Digital Maps

    The following open access digital maps have been published by the Geological Society of America under the Digital Maps and Charts series. They are listed here in chronological order.

  9. Map Resources - American Geosciences Institute

    Learn what a geologic map is and what information they provide. USGS Unveils New National Geologic Map, USGS Access the online version of the complete geologic map of the United …

  10. What is a Geologic Map?

    Geologic maps are uniquely suited to solving problems involving Earth resources, hazards, and environments. Geologic maps represent the distribution of different types of rock and surficial …