HLM V 6 — NGS RD3141 — Vancouver, US

This triangulation station represents a component of the NGS network, which establishes the geodetic framework supporting surveying and mapping activities across the United States. Located near Vancouver, Washington at coordinates 45.62420°N, -122.68131°W, this trig point serves as a monumented reference for horizontal control. Triangulation stations are designed to be intervisible with other marks, forming networks that enable surveyors to establish accurate positions for subsequent surveys and infrastructure projects. The trig classification indicates its primary role in triangulation methodology. Verification and documentation of such benchmarks remains essential for maintaining the integrity of geodetic networks, particularly in regions where development or natural processes may affect monument stability. Current elevation data for this station has not been recorded in available records. Surveyors and geodetic professionals utilizing this reference should consult current NGS documentation and conduct appropriate verification procedures before incorporation into survey work.

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