USGS historical topographic maps topoView.

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Bibliographic Details
Corporate author / creator:Geological Survey (U.S.), cartographer.
Imprint:[Reston, Va.] : U.S. Department of the Interior, U.S. Geological Survey, 1884-2009.
Description:1 online resource (maps) : color
Language:English
Subject:
Cartographic data:Scales differ.
Format: E-Resource Map U.S. Federal Government Document
URL for this record:http://pi.lib.uchicago.edu/1001/cat/bib/11556482
Hidden Bibliographic Details
Varying Form of Title:Historical topographic maps
United States Geological Survey historical topographic maps
TopoView
USGS topoView
Other authors / contributors:National Cooperative Geologic Mapping Program (U.S.)
Notes:"Supported by the National Cooperative Geologic Mapping Program."
Maps are available in JPEG, KMZ, GeoPDF, and GeoTIFF formats.
Description based on online resource; title from page source (viewed on May 19, 2016).
GPO item no.:0619-G-01 (online)
Govt.docs classification:I 19.79:T 62/2