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You searched for: Resource Class Web services Remove constraint Resource Class: Web services Resource Type Vector data Remove constraint Resource Type: Vector data Time Period 1950-1999 Remove constraint Time Period: 1950-1999

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2.

Advisory Neighborhood Commission from 1990: Washington, D.C. University Of Maryland university-of-maryland

1990. D.C. Office of the Chief Technology Officer. Advisory Neighborhood Commission (ANC) polygons. This dataset contains polygons representing ANC boundaries in 1990, created as part of the DC Geog...

6.

Airports: Centre County, Pennsylvania Pennsylvania State University pennsylvania-state-university

1995. Centre County Government. Point Feature Class - It was originally captured as part of the 1995 Aerial Imagery project completed by Kimball.

7.

Alleys: Washington, D.C., 1999 University Of Maryland university-of-maryland

1999. D.C. Office of the Chief Technology Officer. Alley centerlines captured in 1999. Contract NCPC 93-02. This document describes the planimetric map production for the 350 tiles located in Washin...

8.

Archived Land Use Land Cover: Maryland [1973] University Of Maryland university-of-maryland

1973. MDP. This layer contains land use land cover information for the year 1973. The Land Use & Cover map and data is used to show development trends on the ...

9.

Archived Submerged Aquatic Vegetation 1984: Maryland University Of Maryland university-of-maryland

1984. DNR. The Chesapeake Bay SAV Coverage was mapped from 1:24,000 black and white aerial photography to access water quality in the Bay. Each area of SAV wa...

10.

Archived Submerged Aquatic Vegetation 1985: Maryland University Of Maryland university-of-maryland

1985. DNR. The Chesapeake Bay SAV was mapped from 1:24,000 black and white aerial photography to assess water quality in the Bay. Each area of SAV was interpr...