PEAR — NGS RD2880 — Portland, US

This triangulation station is part of the National Geodetic Survey network, which establishes and maintains the primary geodetic control infrastructure for the United States. Trigonometric stations like this one serve as fundamental reference points for surveying, mapping, and engineering projects requiring accurate horizontal positioning. Located near Portland, Oregon, at coordinates 45.56997° N, 122.53738° W, this point contributes to regional horizontal control. As a trig station, it was historically observed as part of a network of intervisible monuments used to extend precise positional data across areas lacking suitable natural features. Documentation and periodic verification of such benchmarks remain essential for surveyors and GIS professionals. These points provide stable references for local surveys, infrastructure projects, and scientific applications. Maintenance of accurate records ensures continued utility of the geodetic infrastructure for future surveying operations throughout the region.

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