U.S. Army Map Service
Posted by: 
flyingmoose
N 38° 59.865 W 077° 18.866
18S E 299571 N 4319075
Located 500 feet south of Georgetown Pike on the southbound side of Springvale Road
Waymark Code: WM14JE1
Location: Virginia, United States
Date Posted: 07/15/2021
Views: 1
Marker Text:
Here, at a former Nike missile site, the U.S. Army Map Service established a research station to support geo-location and navigation in 1961. Two years later, the Map Service Initiated a significant satellite tracking program that became part of the Defense Mapping Agency in 1972. This tracking system contributed fundamentally to the Global Positioning System (GPS). The data gathered here enabled geospatial scientists to establish precise geographical reference points on the Earth’s surface and to refine their estimates of the Earth’s true shape and variations in its gravity field. This facility closed In 1993.
Marker Number: E 143
Marker Title: U.S. Army Map Service
Marker Location: Roadside
County or Independent City: Fairfax
Marker Program Sponsor: Department of Historic Resources, 2017
Web Site: Not listed
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