E 533 — NGS RD1554 — Clark County, US

This triangulation station is part of the NGS network, which establishes and maintains the fundamental geodetic control framework for the United States. Located in Clark County, Washington, at coordinates 45.68139° N, 122.66417° W, this trig point serves as a reference station for surveying and mapping operations across the region. Triangulation stations function as fixed control points that enable surveyors and cartographers to determine precise positions for property boundaries, infrastructure projects, and geospatial data collection. The NGS network integrates these monuments with other control stations to support accurate surveying at local, state, and national scales. Verification and documentation of benchmarks like this point ensures the integrity of the geodetic control network. Surveyors rely on accurate coordinate data and physical monument condition to maintain continuity in spatial reference systems. Regular monitoring and preservation of such stations supports long-term surveying accuracy and public infrastructure development.

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