Trimble Reference Stations

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U.S. Naval Observatory
CORS, U.S. NAVAL OBSERV (USNO), DISTRICT OF COLUMBIA CORS, National Geodetic Survey, NOAA N/NGS1, SSMC3, 1315 East-West Highway Silver Spring, MD 20910-3282 Phone: +1 301 713-3208 x167 Web: http://www.ngs.noaa.gov/CORS/cors-data.html Email: cors@ngs.noaa.gov Contact: CORS, National Geodetic Survey, NOAA
Washington
National Park Service, CRGIS 800 N. Capital St., NW Suite 250 Washington, DC 20001 Phone: +1 202 343-9535 Fax: +1 202 343-1836 Web: http://www2.cr.nps.gov/gis/basestation/index.htm Email: James_Stein@nps.gov Contact: James Stein Notes This base station cannot be accessed from the GPS Pathfinder Office software or the GPS Analyst extension.
Washington
NRECA International, Ltd. 1800 Massachusetts Ave., NW Washington, DC 20036 Phone: +1 202 857-2151 Fax: +1 202 857-4863 Contact: Base Station Manager Notes This base station cannot be accessed from the GPS Pathfinder Office software or the GPS Analyst extension.