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You searched for: Author Geological Survey (U.S) Remove constraint Author: Geological Survey (U.S) Format Shapefile Remove constraint Format: Shapefile Publisher Environmental Systems Research Institute (Redlands, Calif.) Remove constraint Publisher: Environmental Systems Research Institute (Redlands, Calif.) Subject Location Remove constraint Subject: Location Data type Polygon Remove constraint Data type: Polygon
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1. USGS 1:250,000 Topographic Quadrangle Series Index, 1992

1992. Environmental Systems Research Institute (Redlands, Calif.) and Geological Survey (U.S). This polygon shapefile represents the geographic extent of USGS 1:250,000 topographic maps (1- by 2-degree quadrangles) for the coterminous U.S. fo... Environmental Systems Research Institute (Redlands, Calif.).