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An official website of the United States government

FEDMAP

provides funds for Federal geologic mapping projects

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STATEMAP

provides matching-funds for State Geological Surveys

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EDMAP

provides grant funds to train the next generation of geologic mappers

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U.S. GeoFramework Initiative

constructing a national 2D/3D GeoFramework model

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The National Geologic Map Database

the authoritative National Archive for maps and reports about the nation's geology

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Great Lakes Geologic Mapping Coalition

understanding the distribution of Midwest glacial, periglacial, and proglacial deposits

Visit the GLGMC

National Cooperative Geologic Mapping Program

The National Cooperative Geologic Mapping Program (NCGMP) is the primary source of funds for geologic map production in the U.S. NCGMP funds geologic mapping projects through its FEDMAP, STATEMAP, and EDMAP components and the Great Lakes Geologic Mapping Coalition (GLGMC). The NCGMP also maintains the National Geologic Map Database (NGMDB) which serves as the National Archive for geologic maps.

Authorizing Legislation

The National Geologic Map Database

NGMDB Icon

The NGMDB is a Trusted Digital Repository and serves as the authoritative, comprehensive National Archive for maps and reports about the Nation's geology.

Access the NGMDB

Geologic Maps are important for:

- critical minerals

- energy resources

- geologic hazard identification
   and mitigation 

- water resource identification
   and protection

- pollution prevention

- land-use decision-making

- engineering and infrastructure
   planning

- insurance and real estate concerns 

NCGMP Quick Links

News

The Geoheritage Sites of the Nation Explorer is LIVE!

The Geoheritage Sites of the Nation Explorer is LIVE!

First-ever U.S. Geological Mapping Cost-Benefit Study

First-ever U.S. Geological Mapping Cost-Benefit Study

Best Student Geologic Map Competition

Best Student Geologic Map Competition

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Publications

Fluviomorphic trajectories for dryland ephemeral stream channels following extreme flash floods

Ephemeral alluvial streams pose globally significant flood hazards to human habitation in drylands, but sparse data for these regions limit understanding of the character and impacts of extreme flooding. In this study, we document decadal changes in dryland ephemeral channel patterns at two sites in the lower Colorado River Basin (southwestern United States) that were ravaged by...
Authors
Eliisa Lotsari, Kyle House, Petteri Alho, Victor R. Baker
By
National Cooperative Geologic Mapping Program, Geology, Minerals, Energy, and Geophysics Science Center

Near surface sediments introduce low frequency noise into gravity models

3D geologic modeling and mapping often relies on gravity modeling to identify key geologic structures, such as basin depth, fault offset, or fault dip. Such gravity models generally assume either homogeneous or spatially uncorrelated densities within modeled rock bodies and overlying sediments, with average densities typically derived from surface and drill-hole sampling. The noise...
Authors
Geoffrey Phelps, Collin Cronkite-Ratcliff
By
Energy and Mineral Resources Mission Area, National Cooperative Geologic Mapping Program, Geology, Minerals, Energy, and Geophysics Science Center

Evolution of Miocene normal and dextral faulting in the lower Colorado River region near Blythe, California, USA

The evolution of strain in nascent continental plate boundaries commonly involves distributed deformation and transitions between different styles of deformation as the plate boundary matures. Distributed NW-striking faults, many with km-scale right-lateral separation, are prevalent near Blythe, California, and have been variably interpreted to have accommodated either Middle Miocene NE...
Authors
Skyler Pendleton Mavor, Scott E.K. Bennett, Ryan S. Crow, John S. Singleton, Victoria Langenheim, Daniel F. Stockli, Mark E. Stelten, Timothy Brickey Sr., Paul J. Umhoefer, L. Sue Beard
By
National Cooperative Geologic Mapping Program, Geology, Minerals, Energy, and Geophysics Science Center
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Science

link
Map of Alaska with multiple colors throughout the state representative areas of different geology.

Geologic Map of Alaska

In January 2016, the U.S. Geological Survey released the first ever digital geologic map of Alaska. This map reflects more than a century of work and provides a visual context for the abundant mineral and energy resources found throughout the state. The map also is available to use in three different formats: a professional GIS database, a public interactive version via a web browser, and an...
By
Mineral Resources Program, National Cooperative Geologic Mapping Program, Alaska Science Center, Earth Mapping Resources Initiative (Earth MRI)
link

Geologic Map of Alaska

In January 2016, the U.S. Geological Survey released the first ever digital geologic map of Alaska. This map reflects more than a century of work and provides a visual context for the abundant mineral and energy resources found throughout the state. The map also is available to use in three different formats: a professional GIS database, a public interactive version via a web browser, and an...
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link
Alaska geology map revealed

Alaska Databases and Information Analysis

We provide GIS and database support for Alaska-based research projects, including database design, data capture, and maintenance, GIS analysis and display, and production of datasets and metadata for publication and data releases.
By
Mineral Resources Program, National Cooperative Geologic Mapping Program, Alaska Science Center
link

Alaska Databases and Information Analysis

We provide GIS and database support for Alaska-based research projects, including database design, data capture, and maintenance, GIS analysis and display, and production of datasets and metadata for publication and data releases.
Learn More
link
This color photograph shows a view of the red and cream-colored, flat-lying sedimentary rocks in the Grand Canyon. On the left,

Geoheritage Sites of the Nation

Geoheritage is a value-laden term that is applied to features and landforms of geologic significance and includes the scientific, educational, cultural, economic, and aesthetic values that society places on them (Brilha, 2018; GSA, 2017; NASEM, 2021; NPS and AGI, 2015). The goal of the Geoheritage Sites of the Nation project is to develop an inventory of geoheritage sites that showcase the...
By
National Cooperative Geologic Mapping Program, Geology, Energy & Minerals Science Center
link

Geoheritage Sites of the Nation

Geoheritage is a value-laden term that is applied to features and landforms of geologic significance and includes the scientific, educational, cultural, economic, and aesthetic values that society places on them (Brilha, 2018; GSA, 2017; NASEM, 2021; NPS and AGI, 2015). The goal of the Geoheritage Sites of the Nation project is to develop an inventory of geoheritage sites that showcase the...
Learn More
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