USGS Quad Map Index for Google Earth

United States Geological Survey (USGS) created topographic maps of the United States (1879 to 1992).  This web application simply provides a name, number and a hyperlink to download the applicable 7.5 minute (1:24,000 scale) quad map.  Open the USGS_Quad_Index.kml file in Google Earth.  It will dynamically query USGS's database based on the center coordinates of Google Earth.  It will display placemarks at the center of each quadrangle.

Google Earth needs be be installed (http://earth.google.com) before successfully using the links above.  Images courtesy of USGS (www.usgs.gov) via MSR Maps (www.msrmaps.com).

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