SURVEY DISK — NGS RD2322 — Gresham, US

This triangulation station is part of the National Geodetic Survey's network, which establishes the foundational control points for accurate surveying and mapping throughout the United States. Located in the Gresham, Oregon area at coordinates 45.55805° N, 122.46175° W, this trig point serves as a precisely positioned reference for local and regional surveying operations. Triangulation stations of this type were historically observed and computed to create a framework for horizontal control. Modern surveyors rely on documented benchmark locations to verify survey work, establish local coordinate systems, and ensure consistency across projects. The NGS maintains records of such points to support infrastructure development, land boundary determination, and geodetic research. Verification and documentation of existing control points remain valuable for the surveying profession, as these markers provide independent reference standards for quality assurance in contemporary survey practice.

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