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A 125 year history of topographic mapping and GIS in the U.S. Geological Survey 1884-2009, part 1: 1884-1980

E. Lynn Usery·Dalia Varanka·Michael P. Finn
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Abstract

On December 4–5, 1884, John Wesley Powell persuaded the U.S. Congress to authorize the U.S. Geological Survey (USGS) to begin systematic topographic mapping of the United States.

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E. Lynn Usery, Dalia Varanka, Michael P. Finn. 2009. A 125 year history of topographic mapping and GIS in the U.S. Geological Survey 1884-2009, part 1: 1884-1980. https://pubs.usgs.gov/publication/70038929

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