CUP VANCOUVER — NGS RD3340

This trigonometric station is part of the NGS network, which establishes and maintains the foundational geodetic control for the United States. Trig stations serve as reference points for surveying, mapping, and engineering projects across their regions. Located near Vancouver, Washington, at coordinates 45.62934°N, 122.66804°W, this benchmark contributes to the horizontal control network in the Pacific Northwest. Such monuments enable surveyors and engineers to reference their local work to the national coordinate system with precision. Documentation and periodic verification of these stations ensure the integrity of the geodetic framework upon which cadastral surveys, infrastructure projects, and geographic information systems depend. Maintaining accurate records of benchmark locations and condition remains essential for professional surveying practice and public infrastructure development.

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