HLM V 9 — NGS RD3082 — Vancouver, US

This triangulation station is part of the National Geodetic Survey's network of fundamental control points establishing precise horizontal positioning across the United States. Located near Vancouver, Washington at coordinates 45.61402°, -122.64961°, this trig point contributes to the geodetic framework supporting surveying, mapping, and engineering projects throughout the Pacific Northwest region. Triangulation stations serve as monumented reference points whose positions have been accurately determined through rigorous surveying methods. Such marks form the backbone of local and regional control networks, enabling surveyors and engineers to tie their work to a consistent, standardized coordinate system. Documentation and verification of these reference points remains essential for maintaining the integrity of geodetic data. Periodic field checks confirm the continued stability and accessibility of these monuments, ensuring their continued utility for professional surveying applications and public works projects.

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