Big Ten Academic Alliance Geospatial Discovery Portal

Big Ten Academic Alliance Geoportal

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You searched for: Subject Imagery and Base Maps Remove constraint Subject: Imagery and Base Maps
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1.
Raster

1:100,000 Digital Raster Graphics for Delaware

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...

2.
Raster

1:100,000 Digital Raster Graphics for Maryland

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.
Raster

1:100,000 Digital Raster Graphics for Virginia

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...

4.
Raster

1:100,000 Digital Raster Graphics for West Virginia

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...

5.
Raster

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...

6.
Raster

1:24,000 - 7.5 minute digital elevation models (DEM) for Virginia (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...

7.
Raster

1:24,000 - 7.5 minute Digital Raster Graphics for Maryland

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...

8.
Raster

1:24,000 - 7.5 minute Digital Raster Graphics for New Jersey

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...

9.
Raster

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...

10.
Raster

1:24,000 - 7.5 minute Digital Raster Graphics for West Virginia

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...