HARD — NGS RD2872 — Multnomah County, US

This triangulation station is part of the National Geodetic Survey's network, which establishes the geometric framework for surveying and mapping activities across the United States. Located in Multnomah County, Oregon, at coordinates 45.59179° N, 122.56016° W, this trig point serves as a control station for horizontal positioning. Triangulation monuments of this classification historically provided precise reference points for surveyors conducting boundary surveys, topographic mapping, and engineering projects. The NGS network represents decades of accumulated geodetic observations integrated into the National Spatial Reference System. Verification and documentation of benchmark locations remain essential for maintaining survey accuracy and enabling recovery of established positions by contemporary surveying professionals. Even where elevation data remains unrecorded, the horizontal coordinates preserve valuable positional information for regional surveying infrastructure.

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