54=PORTLAND B M — NGS RD0435

This trigonometric station is part of the National Geodetic Survey's network, which establishes and maintains the geometric framework for surveying and mapping activities throughout the United States. Trigonometric stations serve as control points for precise horizontal positioning and are fundamental to large-scale surveying projects, engineering works, and geographic information systems. Located near Portland, Oregon, this benchmark is situated within the Pacific Northwest region and contributes to regional geodetic control. The point's coordinates and inclusion in the NGS registry ensure that surveyors and engineers can reference established positions for their projects with confidence in accuracy and consistency. Verification and documentation of such control points remain essential for maintaining the integrity of the national spatial reference system. Periodic confirmation of benchmark stability and accessibility supports the continued utility of these stations for professional surveying applications.

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