National and International Geology Data
This webpage covers geologic data and maps that are national in
scope, generally 1:1,000,000 to 1:2,000,000 scale, as well as national funding
and coordination programs and standards. It also includes a section for finding
international geology data.
GIS Data and Maps
U.S. Geological Survey
of geology options
Map Maker interactive web map
- Geology: including coal fields, general geology, surficial
deposits, glacial limit, quaternary fault and shaded relief
- Magnetic Field: including declination and intensity
- Mineral Operations: including agricultural and construction
mineral operations, ferrous and nonferrous mining, and sand, gravel and
- National Geologic Map Database
"Developing a distributed archive of standardized geoscience information for the nation." Includes a geologic map catalog, stratigraphic naming conventions, map viewing application, 'maps in progress' map application, and access to the historical topographic map collection.
- Mineral Resources On-Line Spatial Data
Links to state and national geology, geochemistry, geophysics, and
mineral resource maps and data.
- A Tapestry of
Time and Terrain A map that combines geology and topography.
It resembles traditional 3-D perspective drawings of landscapes with the
addition of a fourth dimension, geologic time, which is shown in color.
Available for the lower 48 states and for North America.
U.S. Bureau of Land Management
Interactive web maps of BLM activities related
to mining, land use permits, rights-of-way and oil and gas leasing. May
not contain data for Minnesota, but is useful for finding data in other
National Cooperative Geologic Mapping Program (NCGMP)
Run primarily by the U.S. Geological Survey, this program provides
funding and direction for geologic mapping and modeling at the national,
state and collegiate levels.
An international initiative of the geological surveys of the world. Its aim
is to create dynamic geological map data of the world available via the web.
These pages provide a background to the initiative as well as up-to-date
information on its progress.