1994. U.S. Geological Survey. This shapefile contains the boundaries of the 8-digit watersheds that intersect New York State. These hydrologic unit boundaries provide a uniquel...
2000. U.S. Census Bureau. CUGIR, the Cornell University Geospatial Information Repository, using US Department of Commerce, Bureau of the Census data, developed the GIS data...
1994. New York Cornell University Aquatic Ecology group. This dataset provides polygon coverage of the basins in the Great Lakes tributary watersheds of New York state, except for the Genesee, Black, Salm...
1979. U.S. Geological Survey. The DLG data files used to create this dataset are derived from the 1:2,000,000-scale maps contain selected base categories of cartographic data in...
1999. U.S. Geological Survey. The data set portrays the polygon and line water features of New York State. The file was produced by joining the individual State hydrography laye...
2001. Tompkins County Planimetric Project. The Tompkins County Planning Department utilized inter-departmental mapping expertise of the Tompkins County Information Technology Services GIS Di...
1999. U.S. Geological Survey. This map layer includes the locations of over 500 majors dams in New York State. The information in the map layer was provided by the U.S. Army Cor...
1994. U.S. Geological Survey. This data set shows the 1991 and 1994 National Water-Quality Assessment (NAWQA) study units' major surface-water sampling sites. These sites are in...
1998. James A. Miller (comp.). This data set contains the shallowest principal aquifers of New York State, portrayed as lines. The data set was developed as part of the effort to...
2004. Lamont-Doherty Earth Observatory, Columbia University. This dataset provides sediment types found on the floor of the Hudson River Estuary. The sediment type interpretation is based on the grain size an...
2004. Lamont-Doherty Earth Observatory, Columbia University. This dataset provides sedimentary environments of the Hudson River Estuary from Verrazano Narrows Bridge to Troy. Areas of the Hudson River shallow...
2011. New York State Water Resources Institute. This dataset presents counts of septic systems at the census tract level. Data were derived from 2011 county parcel data and aggregated by census t...
1998. Lamont-Doherty Earth Observatory, Columbia University. This data set presents a detailed shoreline of the Hudson River Estuary, based upon shoreline data from the Hudson River Estuary Program (accuracy ...
1996. New York Aquatic Gap Analysis Group. This shapefile contains polygons representing the stream basins of the Allegheny River watershed in western New York. Basins were developed for str...
1996. New York Aquatic Gap Analysis Group. This shapefile contains polygons representing the stream basins of the French Creek watershed in western New York. Basins were developed for stream...
1991. Tompkins County Planimetric Project. The Tompkins County Planning Department utilized inter-departmental mapping expertise of the Tompkins County Information Technology Services GIS Di...