COPY — NGS RD2924 — Portland, US

This triangulation (trig) station is part of the National Geodetic Survey's network, which establishes the primary geometric framework for surveying and mapping across the United States. Located near Portland, Oregon at coordinates 45.59741° N, 122.59586° W, this point serves as a horizontal control reference for regional surveying operations. Trig stations function as monumented survey points whose positions are precisely determined and documented. They provide essential horizontal control for cadastral surveys, engineering projects, and geographic data collection throughout their service areas. Verification and documentation of such points remain critical to maintaining geodetic network integrity and ensuring consistency in spatial referencing for professional surveying work. The accessibility and condition of established control points directly impact the efficiency and accuracy of contemporary survey operations. Proper maintenance of registry records ensures that surveyors can reliably locate and use these monuments for coordinate verification and project control networks.

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