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You searched for: Author U.S. Geological Survey Remove constraint Author: U.S. Geological Survey Access Public Remove constraint Access: Public Subject Imagery and Base Maps Remove constraint Subject: Imagery and Base Maps Institution Penn State Remove constraint Institution: Penn State Place District Of Columbia, United States Remove constraint Place: District Of Columbia, United States
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1. 1:24,000 - 7.5 minute digital elevation models (DEM) for the District of Columbia (30 meter)

2000. U.S. Geological Survey. Digital Elevation Model (DEM) is the terminology adopted by the USGS to describe terrain elevation data sets in a digital raster form. The standard...

2. 1:24,000 - 7.5 minute Digital Raster Graphics for the District of Columbia

2000. U.S. Geological Survey. A Digital Raster Graphic (DRG) is a raster image of a scanned USGS topographic or planimetric map including the collar information, georeferenced t...

3. USGS Geopdfs for District of Columbia

2011. U.S. Geological Survey. Layered GeoPDF 7.5 Minute Quadrangle Map. Layers of geospatial data include orthoimagery, roads, grids, geographic names, elevation contours, hydro...