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

5.
1:100k Digital Raster Graphic - Collars Removed: Minnesota

1:100k Digital Raster Graphic - Collars Removed: Minnesota

2015. Minnesota Department of Natural Resources (DNR). A digital raster graphic (DRG) is a scanned image of an U.S. Geological Survey (USGS) standard series topographic map, including all map collar inf...

6.
Raster

1:24,000 - 7.5 minute digital elevation models (DEM) for the District of Columbia (30 meter)

2000. United States Geological Survey (USGS). 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 elevation models (DEM) for Virginia (30 meter)

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

8.
Raster

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

2000. United States Geological Survey (USGS). 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 New Jersey

2000. United States Geological Survey (USGS). 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 the District of Columbia

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

11.
Raster

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

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

12.
Raster

1:24,000 -7.5 minute digital elevation models (DEM) for West Virginia (30 meter)

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

13.
1:24k Digital Raster Graphic - Collars Removed: Minnesota

1:24k Digital Raster Graphic - Collars Removed: Minnesota

2015. Minnesota Department of Natural Resources (DNR). A digital raster graphic (DRG) is a scanned image of an U.S. Geological Survey (USGS) standard series topographic map, including all map collar inf...

14.
Raster

1:250,000 Digital Raster Graphics for Delaware

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

15.
Raster

1:250,000 Digital Raster Graphics for Maryland

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

16.
Raster

1:250,000 Digital Raster Graphics for Virginia

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

17.
Raster

1:250,000 Digital Raster Graphics for West Virginia

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

18.
1:250k Digital Raster Graphic - Collars Removed: Minnesota

1:250k Digital Raster Graphic - Collars Removed: Minnesota

2015. Minnesota Department of Natural Resources (DNR). A digital raster graphic (DRG) is a scanned image of an U.S. Geological Survey (USGS) standard series topographic map, including all map collar inf...

19.
Raster

1927 Mississippi River Pool 2 - Historic Aerial Photo Mosaic

US Army Corps of Engineers, St. Paul District Office. MrSID Lossless mosaic of Pool 2 and Upper Pool 3 Mississippi River - 1927 rectified black and white photos.

20.
Raster

1929 Mississippi River Pool 4 - Historic Aerial Photo Mosaic

US Army Corps of Engineers, St. Paul District Office. MrSID lossless mosaic of the 1929 aerial photos for Lower Pool 4 , on the Mississippi River.