B 533 — NGS RD1549 — Vancouver, US

This triangulation station is part of the National Geodetic Survey's horizontal control network, which establishes the foundational reference framework for surveying and mapping across the United States. Located near Vancouver, Washington, at coordinates 45.63637° N, 122.67523° W, this trig point serves as a monumented ground station for precise positioning and geodetic measurement. Triangulation stations of this type were historically occupied during field surveys to establish accurate spatial relationships across regional areas. The point's documented location and classification contribute to the NGS database, supporting professional surveyors, engineers, and cartographers who require reliable horizontal control for boundary determination, construction layout, and geographic information system applications. Verification and continued documentation of such benchmarks preserve critical infrastructure data and maintain the integrity of the national geodetic system for future surveying projects.

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