Tompkins County ITS GIS Division,Hitachi SoftwareBuilding polygons representing houses, businesses, mobile homes, barns, silos and other buildings that could be determined from aerial photography, using photogrammetric mapping technologies and HouseDiff feature extraction process. This data set is intended for use as a reference map layer for GIS maps and applications.Shapefilehttps://cugir.library.cornell.edu/catalog/cugir-007881PublicBuilding Outlines, Tompkins County NY, 2005DatasetsTompkins CountyNew York (State)1991-2002Cornell