125th Anniversary of Topographic Mapping

On Thursday December 3, 2009, the USGS celebrated the 125 th anniversary of topographic mapping at the USGS National Center in Reston, VA. Hear clips of the celebration in this episode of CoreCast, including the history of USGS mapping, given by Mark DeMulder, director of the National Geospacial Program. Also, Kari Kraun, director of the National Geospacial Technical Operation Center, takes us on a tour of brand new USGS mapping products, including US Topo and the National Map Viewer

Via 125th Anniversary of Topographic Mapping

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