U.S. National Geodetic Survey

National Geodetic Survey, formerly called the U.S. Coast and Geodetic Survey (U.S.C.G.S.), is a United States federal agency that defines and manages a national coordinate system. It measures the land and then draws maps. It also measures magnetic fields and tides. Congress started it in 1807 to draw maps of the coasts.[1] It helps transportation and communication; mapping and charting; and a large number of uses of science and engineering. Since 1970, it has been part of the National Oceanic and Atmospheric Administration (NOAA), of the United States Department of Commerce.[1]


  1. 1.0 1.1 "Coast and Geodetic Survey Heritage = NOAA Central Library". Retrieved January 13, 2012.

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