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1. Bronx Water Bodies, 1873

1873. Digital Social Science Center, Columbia University Libraries and New York (N.Y.). Dept. of Parks. Bronx 1873 Water Bodies is a polygon theme representing water bodies in and around the Bronx in 1873. The features were digitized from the map ser... Columbia University Libraries.

2. United States Hydrographic Polygons, 2013

2011. United States. Bureau of Transportation Statistics, United States. Department of Transportation. Research and Innovative Technology Administration, and United States. Bureau of the Census. The hydro polygon/arc coverages were created using TIGER/LINE 2000 shapefile data gathered from ESRI's Geography Network. The individual county hyd... U.S. Bureau of the Census (BOC).