National Geospatial Program
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The National Geospatial Program (NGP) provides a foundation of digital geospatial data representing the topography, natural landscape, and manmade environment of the United States. Customers can incorporate NGP geospatial products and services into their decision making and operational activities. NGP data and derived products and services can be accessed through The National Map Data Download.
Topographic Maps
US Topo maps and the Historical Topographic Map Collection (HTMC) are produced by the National Geospatial Program of the USGS.
Learn More3D Elevation (3DEP)
3DEP is a cooperative program that is accelerating the rate and quality of 3D elevation data collection to address a wide range of critical needs. The goal of 3DEP is to complete national data coverage in 8 years.
Learn MoreNews
Editing over the Holidays!
The holidays are always a busy and sometimes stressful time of year: food to cook, houses to clean, trips to plan, gifts to buy, family to coordinate, the list goes on. So we completely understand that editing data for The National Map Corps might not be high on your list of priorities these days. --*Sigh*
National Hydrography October 2018 Newsletter released
The USGS National Hydrography Dataset Newsletter, Vol. 17, No. 10, October 2018 has been released and posted for viewing.
Favorite Headstones and Mapping
The National Map Corps encourages and leverages volunteer citizen scientists to update structure data to The National Map. To reward, recognize and motivate these participants, the program awards “virtual” badges for increasing levels of edits and submission.
Publications
GNIS-LD: Serving and visualizing the Geographic Names Information System Gazetteer as linked data
In this dataset description paper we introduce the GNIS-LD, an authoritative and public domain Linked Dataset derived from the Geographic Names Information System (GNIS) which was developed by the U.S. Geological Survey (USGS) and the U.S. Board on Geographic Names. GNIS provides data about current, as well as historical, physical, and cultural...
Regalia, Blake; Janowicz, Krzysztof; Mai, Gengchen; Varanka, Dalia E.; Usery, E. Lynn
A comparison of synthetic flowpaths derived from light detection and ranging topobathymetric data and National Hydrography Dataset High Resolution Flowlines
Bathymetric and topobathymetric light detection and ranging (lidar) digital elevation models created for the Delaware River were provided to the National Geospatial Program and used to evaluate synthetic flowpath extraction from bathymetric/topobathymetric lidar survey data as a data source for improving the density, distribution, and connectivity...
Miller-Corbett, Cynthia Understanding map projections: Chapter 15
It has probably never been more important in the history of cartography than now that people understand how maps work. With increasing globalization, for example, world maps provide a key format for the transmission of information, but are often poorly used. Examples of poor understanding and use of projections and the resultant maps are many; for...
Kent, Alexander J.; Vujakovic, Peter; Usery, E. Lynn