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6. Elevation Points: Washington, D.C., 1999

1999. City of Washington, DC. Elevation captured in 1999. Contract NCPC 93-02. This document describes the planimetric map production for the 350 tiles located in Washington DC ...
maryland

13. Topographic Grid Index: Calvert County, Maryland

2016. Calvert County GIS. This dataset represents the tiling scheme used to compile Calvert County topographic and planimetric data. There are 1098 topographic grids that sp...
maryland

16. Topography - 2 Foot Contours: Washington, D.C.

City of Washington, DC. 2 foot contours (2008) provided as shapefile. This dataset may delay in downloading. Optionally download geodatabase. This dataset contains locatio...