T 7 — NGS RD0626 — Vancouver, US

This triangulation station is part of the National Geodetic Survey's network, which establishes and maintains the fundamental geometric framework for surveying and mapping throughout the United States. As a trig point, this station served as a control point in triangulation surveys, providing accurate horizontal positioning for subsequent surveying work across the region. Located near Vancouver, Washington, at coordinates 45.62833° N, 122.68194° W, this benchmark contributes to the geodetic infrastructure of the Pacific Northwest. Trig stations of this type are typically monumented points established on elevated or prominent terrain to facilitate sight lines for classical triangulation methods. Verification and documentation of such control points remain valuable for surveyors conducting boundary determinations, engineering projects, and geographic information system development. Maintaining current records of benchmark locations and conditions supports the continuity and reliability of spatial reference systems.

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