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 …
Macrostrat
With over 225 maps from data providers around the world across every scale, Macrostrat is the world's largest homogenized geologic map database.
State Geologic Map Compilation - ArcGIS
This web map portrays the U.S. Geological Survey's State Geologic Map Compilation (SGMC) geodatabase of the conterminous United States. The SGMC represents a seamless, spatial …
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 …
Cooperative National Geologic Map: Earth’s surface geology
Sep 2, 2025 · The Earth’s Surface Geology layer depicts geologic units exposed at the earth’s surface over the entire conterminous United States, inclusive of everything from Quaternary …
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. Bedding planes and …
The National Map - 3D Viewer
Explore the National Map's 3D Viewer for interactive mapping, elevation profiles, and range ring centroids.
California Regional Geologic Maps
The new maps cover the same areas as the older Geologic Atlas of California, but show more detail and use geologic formations rather than the simplified geologic time-based units.
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.
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 …