PACE — NGS RD3421 — Vancouver, US

This triangulation station is part of the National Geodetic Survey's network, which establishes and maintains the geometric framework for precise positioning and mapping across the United States. Located near Vancouver, Washington, this trig point serves as a control station for surveying and mapping operations in the Pacific Northwest region. Triangulation stations of this type provide fundamental vertical and horizontal control that supports engineering projects, land surveys, and geographic information systems. The monument's coordinates (45.62996° N, 122.69246° W) enable surveyors to reference measurements against a standardized datum. Documentation and periodic verification of such benchmarks are essential for maintaining the integrity of the National Spatial Reference System. As surveying technology evolves, accessible records of established control points ensure continuity and accuracy in regional surveying work and provide reliable datum connections for contemporary positioning methods.

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