other Citation Details
Cinergi keyword enhanced at Mon Jan 16 14:13:16 UTC 2017
purpose:
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.