30.2 — NGS RD0456 — Portland, US

This triangulation station is part of the NGS network, which maintains the foundational geodetic control for the United States. Situated near Portland, Oregon, at coordinates 45.51833° N, 122.67056° W, this trig point serves as a reference for surveying and mapping activities across the region. Trig stations function as precisely positioned control points established through classical triangulation methods. They provide surveyors and engineers with accurate horizontal positioning data essential for cadastral surveys, infrastructure projects, and geographic information systems. The NGS network integrates these stations into a cohesive framework supporting both public and private surveying efforts. Documentation and verification of benchmark locations remain critical for maintaining geodetic infrastructure integrity. As survey technology evolves and land development continues, confirmed reference points ensure consistency in spatial data collection and enable efficient coordination of surveying projects throughout the Pacific Northwest region.

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