20231019 16120400 1.0 TRUE 7.5 Minute Quad Index Polygons - NAD 83 The 2013 and 2016, 7.5-minute quadrangle index map in Kentucky Single Zone State Plane Coordinate System (FIPS 1600; EPSG 3089). This layer was generated in ArcMap from latitude and longitude geographic coordinates, using NAD83 datum as reference. The dataset incorporates both Kentucky-specific and USGS attributes for each quadrangle. USGS, DGI