1995. U.S. Geological Survey. This is an index of all the available DEM (digital elevation model) tiles within New York state. Download links are provided for each quad. Each DE...
2000. New York State. Department of Environmental Conservation. This is an index to Large scale hydrography surface water areas tiled by HUC-8 sub-basin boundaries. Surface water areas extracted from New York St...
2013. New York State. Department of Environmental Conservation. These data are a set of ARC/INFO coverages composed of polygonal and linear features. Coverages are based on official New York State Freshwater Wet...
2000. Mann Library, Cornell University. This is an index of county-based mosaics of USGS topographic maps. Map images were derived from scans of USGS 7.5 minute quadrangle maps (Digital R...