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USGS Geopdf's for Pennsylvania - Historic

2011 - U S Geological Survey


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ADDITIONAL RESOURCES
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ABSTRACT
The USGS Historical Quadrangle Scanning Project (HQSP) is scanning all scales and all editions of topographic maps published by the U.S. Geological Survey (USGS) since the inception of the topographic mapping program in 1884. This map is provided as a general purpose map in GeoPDF for users who are not GIS experts.