V 441 — NGS RD0066 — Troutdale, US

This triangulation station is part of the National Geodetic Survey's network of control points that establish the geometric foundation for surveying and mapping across the United States. Located near Troutdale, Oregon, at coordinates 45.54333° North, 122.40750° West, this trig point serves as a reference station for horizontal position control in the Willamette Valley region. Triangulation stations of this type were historically observed and incorporated into the NGS network to provide accurate positional data for cadastral surveys, engineering projects, and geographic information systems. The point's documented location enables surveyors and GIS professionals to establish local survey networks with known accuracy and consistency. Verification and proper documentation of such control points remain valuable for maintaining geodetic infrastructure continuity. Organizations and professionals conducting surveys in this area should consult current NGS records to confirm the point's status, accessibility, and any relevant accuracy specifications before field use.

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