What is U.S. National Geodetic Survey?
[[File:DarienCTUSCoastAndGeodeticSurvey1965Marker11042007.jpg|thumb|right|250px|Closeup of a Geodetic Survey marker]] '''National Geodetic Survey''', formerly called the '''U.S. Coast and Geodetic Survey''' (U.S.C.G.S.), is a [[Federal government of the United States|United States federal agency]] that defines and manages a national [[coordinate system]]. It measures the land and then draws [[map]]s. It also measures [[magnetic field]]s and [[tide]]s. Congress started it in 1807 to draw maps of the [[coast]]s.<ref name=noaa>{{cite web|url=http://www.lib.noaa.gov/noaainfo/heritage/coastandgeodeticsurvey/index.html|title=Coast and Geodetic Survey Heritage = NOAA Central Library|accessdate=January 13, 2012|archive-date=December 19, 2015|archive-url=https://web.archive.org/web/20151219185106/http://www.lib.noaa.gov/noaainfo/heritage/coastandgeodeticsurvey/index.html|url-status=dead}}</ref> It helps transportation and communication; mapping and charting; and many science and [[engineering]] uses. Since 1970, it has been part of the [[National Oceanic and Atmospheric Administration]] (NOAA), of the [[United States Department of Commerce]].<ref name=noaa/> ==References== <references/> ==Other websites== {{Commons category|United States Coast and Geodetic Survey}} *[http://www.ngs.noaa.gov/ National Geodetic Survey website] **[http://www.lib.noaa.gov/noaainfo/heritage/coastsurveyvol1/CONTENTS.html early history of the Coast Survey] {{Webarchive|url=https://web.archive.org/web/20090628110735/http://www.lib.noaa.gov/noaainfo/heritage/coastsurveyvol1/CONTENTS.html |date=2009-06-28 }} **[http://www.nauticalcharts.noaa.gov/ NOAA Office of Coast Survey] **[http://docs.lib.noaa.gov/rescue/cgs/data_rescue_cgs_annual_reports.html U.S. Coast and Geodetic Survey Annual Reports, years 1837–1965] *[http://www.arlingtoncemetery.net/uscgs.htm Timeline] {{Webarchive|url=https://web.archive.org/web/20120105233314/http://www.arlingtoncemetery.net/uscgs.htm |date=2012-01-05 }} at [[Arlington National Cemetery]] website *[http://www.peakb