55 — NGS RD0476 — Portland, US
USNGStrigunknown#5750
Latitude
45.530556°
Longitude
-122.676194°
Ortho h
10.60 m
Verifications
0
Last checked
Never
This triangulation station is part of the National Geodetic Survey's network, which establishes the foundational control points for the United States' geodetic datum and surveying infrastructure. Located near Portland, Oregon at coordinates 45.53056°N, 122.67619°W, this trig point serves as a reference for horizontal positional control across the region.
Triangulation stations of this type traditionally support survey work, mapping projects, and engineering applications requiring accurate spatial reference. The point's integration within NGS records enables surveyors and cartographers to maintain consistency and traceability across multiple projects and jurisdictions.
Verification and documentation of such control points remain essential for maintaining the integrity of the national geodetic network. Regular recovery and condition assessment of established monuments help ensure their continued utility for professional surveying activities and public infrastructure development.
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