2005. This polyline feature represents contour lines for the City of Alexandria, Virginia. .
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2010. This dataset displays the topographical elevation lines above sea level in Fauquier County, VA 2010. These lines are record in 5-foot intermediate ...
2002. This dataset displays the topographical elevation lines above sea level in Prince William County. Descriptions for type codes can be found in the P...
1999. This dataset contains locations and attributes of 10 metre interval topography data in Washington, DC 2002.
1999. This dataset contains locations and attributes of 5 metre interval topography data in Washington, DC 2002
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2019. This polygon layer represents township boundary of China including the China Country Boundary. All names of townships are in Chinese. .
1. This dataset represents the location of Toxic Release in Washington, DC 2004.
1. This polygon layer represents the Traffic Zones in the Prince William County, VA.
202. The Trails feature class contains polyline features that represent foot and/or bike paths and vehicle driveways.
2005. This polygon layer represents the location of Areas under construction in Washington, DC 2006.