RV 12 — NGS JC0098 — Dupo, US

This triangulation station is part of the National Geodetic Survey's network, which establishes and maintains the fundamental geodetic framework for the United States. As a trig point, this station served as a control point for horizontal positioning and survey operations across its region. Located near Dupo, Illinois, at coordinates 38.52778° N, 90.20667° W, this benchmark occupies a position within the Mississippi River drainage basin area. Triangulation stations of this type were established to create an interconnected system of precisely positioned reference points, enabling surveyors and cartographers to conduct accurate measurements and mapping projects. The verification and documentation of such geodetic control points remains valuable for confirming positional accuracy, supporting modern surveying work, and maintaining continuity with historical survey networks. Elevation data for this particular station has not been recorded in available registry information.

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