P 484 — NGS RD0357 — Portland, US
USNGStrigunknown#5543
Latitude
45.576944°
Longitude
-122.613611°
Ortho h
6.29 m
Verifications
0
Last checked
Never
This triangulation station is part of the National Geodetic Survey's foundational control network, which establishes horizontal and vertical reference standards across the United States. Triangulation stations serve as precisely positioned monuments used to support accurate surveying, mapping, and engineering projects. Located in the Portland, Oregon vicinity at coordinates 45.57694° N, 122.61361° W, this benchmark provides critical control points for regional geodetic work. The NGS network enables surveyors and engineers to tie their local measurements to the national datum, ensuring consistency and accuracy across jurisdictional boundaries. Verification and documentation of such control points remains essential to maintaining the integrity of the surveying infrastructure and supporting applications in civil engineering, land management, and geographic information systems.
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