N 534 — NGS RD1578 — Vancouver, US

This triangulation station is part of the National Geodetic Survey's primary horizontal control network, which establishes the foundational geodetic reference framework for the United States. Trig stations of this classification serve as monumented survey control points used to support mapping, engineering projects, and precise positioning activities across regions. Located in the Vancouver, Washington vicinity at coordinates 45.62873° N, 122.66607° W, this point contributes to local and regional survey infrastructure in the Pacific Northwest. Triangulation stations historically provided accurate horizontal positioning through intervisible networks before modern satellite technology became available. Verification and documentation of existing NGS control points remain valuable to surveying professionals for establishing local datums, validating survey work, and maintaining continuity of historical survey networks. Surveyors encountering this monument should report its current condition to NGS to support ongoing network maintenance and public geodetic records.

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