E 311 — NGS JC0200 — St. Louis, US
USNGStrigunknown#7066
Latitude
38.625833°
Longitude
-90.228889°
Ortho h
140.73 m
Verifications
0
Last checked
Never
This triangulation station is part of the National Geodetic Survey's network that forms the foundation of horizontal control for the United States. Located near St. Louis, Missouri at coordinates 38.62583°N, 90.22889°W, this trig point serves as a fixed reference for surveying and mapping activities across the region. Triangulation stations of this type were established to provide accurate positional data for cadastral surveys, engineering projects, and cartographic work. The point's inclusion in the NGS registry ensures that surveyors and geospatial professionals can reference a standardized control network for their measurements. Verification and documentation of such benchmarks remain essential for maintaining the integrity of surveying records and supporting modern positioning technologies that build upon these historical control networks.
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