pl23_geod0514.jpg
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https://www.noaa.gov/media/digital-library-photo/pl23geod0514jpgDescription
Mount used for placing GPS receivers on top of the WashingtonMonument. This mounting device was manufactured by the National Institute ofStandards and Technology (NIST) in Gaithersburg, Maryland.
Location
Washington, D. C.
Category
Geodesy
Keywords
Geodesy