Article: National Geospatial Program

Geospatial, Open Data

National Geospatial Program

With the release of new US Topo maps for Illinois and South Dakota, the USGS has completed the second, three-year cycle of revising and updating electronic US Topo quadrangles.

Since the project’s inception in late 2009, the USGS has updated nearly every map in the conterminous U.S. twice. “The USGS and NGP are proud of our history and legacy of topographic mapping.

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