U.S. Army Map Service

U.S. Army Map Service (HM1Z7J)

Location: Great Falls, VA 22066 Fairfax County
Country: United States of America

N 38° 59.866', W 77° 18.866'

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Inscription
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.
Details
HM NumberHM1Z7J
Tags
Year Placed2017
Placed ByDepartment of Historic Resources
Marker ConditionNo reports yet
Date Added Monday, June 26th, 2017 at 3:01pm PDT -07:00
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Locationbig map
UTM (WGS84 Datum)18S E 299571 N 4319076
Decimal Degrees38.99776667, -77.31443333
Degrees and Decimal MinutesN 38° 59.866', W 77° 18.866'
Degrees, Minutes and Seconds38° 59' 51.96" N, 77° 18' 51.96" W
Driving DirectionsGoogle Maps
Area Code(s)703, 571
Closest Postal AddressAt or near 908 State Rte 674, Great Falls VA 22066, US
Alternative Maps Google Maps, MapQuest, Bing Maps, Yahoo Maps, MSR Maps, OpenCycleMap, MyTopo Maps, OpenStreetMap

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