2010. U.S. State Plane Zones (NAD 1927) represents the State Plane Coordinate System (SPCS) Zones for the 1927 North American Datum within United States.... Environmental Systems Research Institute (Redlands, Calif.).
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2010. U.S. State Plane Zones (NAD 1983) represents the State Plane Coordinate System (SPCS) Zones for the 1983 North American Datum within United States.... Environmental Systems Research Institute (Redlands, Calif.).
2010. U.S. USGS 1:24,000 Topographic Quadrangle Series Index represents the geographic extent of USGS 1:24,000 topographic maps (7.5- by 7.5-minute quadr... Environmental Systems Research Institute (Redlands, Calif.).