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...
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...
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...