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 Layer geom type s Raster Remove constraint Layer geom type s: Raster
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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.
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...

6.
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...

7.
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...

8.
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...

9.
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...

10.
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...

11.
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...

12.
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...

13.
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...

14.
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...

15.
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...

16.
1:250k Digital Raster Graphic - Collars Removed: Minnesota

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

1998. U.S. Geological Survey and Minnesota DNR and 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...

17.
Raster

Above-Ground Biomass, 30 Meter Resoulution, Statewide: Maryland, 2011

2011. University of Maryland, NASA. Maryland aboveground biomass map [30m] generated using Random Forests regression models. Last Updated: 2011.

18.
Aerial Imagery: Hennepin County, Minnesota, 1940

Aerial Imagery: Hennepin County, Minnesota, 1940

1940. Rectified black and white aerial imagery of portions of Hennepin County captured during the summer of 1940.

19.
Aerial Imagery: Hennepin County, Minnesota, 1953

Aerial Imagery: Hennepin County, Minnesota, 1953

1953. Rectified black and white aerial imagery of Hennepin County captured during the fall of 1953.

20.
Aerial Imagery: Hennepin County, Minnesota, 1957

Aerial Imagery: Hennepin County, Minnesota, 1957

1957. Rectified black and white aerial imagery of Hennepin County captured during the spring of 1957.