CSL 17 — NGS AA8577 — St. Louis, US
USNGStrigunknown#7082
Latitude
38.679285°
Longitude
-90.212355°
Ellipsoidal h
126.38 m
Ortho h
157.60 m
Verifications
0
Last checked
Never
This trigonometric station is part of the NGS network, which establishes the fundamental geodetic control framework for the United States. Positioned near St. Louis, Missouri, at coordinates 38.67929° N, 90.21235° W, this trig point serves as a reference monument for surveying and mapping operations across the region. The station's ellipsoidal elevation of 126.4 meters provides vertical control data essential for accurate positioning work. Trig stations like this historically supported triangulation networks and continue to serve modern surveying applications, including GPS validation and local survey control establishment. Verification and documentation of such points remain valuable for maintaining geodetic infrastructure integrity, ensuring consistency in spatial data, and supporting engineering projects, land surveying, and geographic information systems throughout the area.
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