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1. 90-Meter Bathymetric Grid, New England, 1999

1999. National Geophysical Data Center, United States. Department of Commerce, United States. National Oceanic and Atmospheric Administration, and United States. National Environmental Satellite, Data, and Information Service. This raster dataset provides bathymetry information at a resolution of 90 meters for New England- from coastal regions to the edge of the continent... National Geophysical Data Center.

2. Digital Orthophoto Quarter Quadrangle images for Pennsylvania

1999. U.S. Geologic Survey; Pennsylvania Bureau of Topographic and Geologic Survey. Orthophotos combine the image characteristics of a photograph with the geometric qualities of a map. The primary digital orthophotoquad (DOQ) is a ...

3. National Land Cover Dataset 1992 - Pennsylvania; Albers GeoTIFF

1999. U.S. Geological Survey (USGS). These data can be used in a geographic information system (GIS) for any number of purposes such as assessing wildlife habitat, water quality, pesti...

4. National Land Cover Dataset 1992 - Pennsylvania; Albers Grid

1999. U.S. Geological Survey (USGS). These data can be used in a geographic information system (GIS) for any number of purposes such as assessing wildlife habitat, water quality, pesti...

5. National Land Cover Dataset 1992 - Pennsylvania; Unprojected/Geographic

1999. U.S. Geological Survey (USGS). These data can be used in a geographic information system (GIS) for any number of purposes such as assessing wildlife habitat, water quality, pesti...

6. New York City Area Digital Elevation Model, 1 Arc Second, 1999

1999. U.S. Geological Survey (USGS), EROS Data Center. New York City Area Digital Elevation Model, 1 Arc Second (feet) is a raster dataset representing elevations in the New York City area. This layer... U.S. Geological Survey.

7. New York City Area Digital Elevation Model, 1 Arc Second (meters), 1999

1999. U.S. Geological Survey (USGS), EROS Data Center. New York City Area Digital Elevation Model, 1 Arc Second (meters) is a raster dataset representing elevations in the New York City area. This lay... U.S. Geological Survey.

8. New York City Area Digital Elevation Model, 1/3 Arc Second, 1999

1999. U.S. Geological Survey (USGS), EROS Data Center. New York City Area Digital Elevation Model, 1/3 Arc Second (feet) is a raster dataset representing elevations in the New York City area. This lay... U.S. Geological Survey.

9. New York City Area Digital Elevation Model, 1/3 Arc Second (meters), 1999

1999. U.S. Geological Survey (USGS), EROS Data Center. New York City Area Digital Elevation Mode, 1/3 Arc Second (meters) is a raster dataset representing elevations in the New York City area. This lay... U.S. Geological Survey.

10. Nighttime Lights of the World - Human Settlements, 1999

1999. National Geophysical and Solar-Terrestrial Data Center. This map shows light sources from human settlements around the world observed during 1999. The Defense Meteorological Satellite Program (DMSP) Oper... National Geophysical and Solar-Terrestrial Data Center.