SOH ST MON 2 — NGS DR2165 — Waipahu, US

This triangulation station is part of the National Geodetic Survey's network, which establishes and maintains the foundational control points for surveying and mapping across the United States. Located near Waipahu on the island of Oahu, Hawaii, at coordinates 21.50272°N, 158.05211°W, this trig point serves as a reference station for horizontal positioning. Triangulation stations of this type have historically provided precise horizontal control for cadastral surveys, engineering projects, and map compilation throughout Hawaii's surveying infrastructure. The documented coordinates allow surveyors and engineers to reference their local measurements to the national geodetic framework. Verification and proper documentation of such control points remain important for maintaining survey accuracy and consistency across multiple projects and jurisdictions. Professional surveyors rely on these established reference stations when conducting boundary surveys, construction layout, and spatial data collection in Hawaii.

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