P 45 — NGS RD0606 — Vancouver, US

This trigonometric station is part of the National Geodetic Survey's network of control points that form the foundation of the United States' horizontal geodetic infrastructure. Located in the vicinity of Vancouver, Washington, this trig point serves as a precisely positioned reference for surveying, mapping, and engineering projects throughout the region. Trigonometric stations like this one were historically established to provide accurate positional control across the country through triangulation methods. The point's coordinates at 45.59881°, -122.54521° enable surveyors and GIS professionals to reference local work to the national datum. Verification and proper documentation of such benchmarks remain essential, as these points support cadastral surveys, infrastructure development, and geodetic research. Maintaining accurate records of control point locations and accessibility ensures continuity of surveying standards and supports future spatial data integration efforts.

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