SOH 53 — NGS DR2116 — Waipahu, US

This trigonometric station is part of the National Geodetic Survey's network of horizontal control points that form the foundation of the United States' surveying and mapping infrastructure. Located near Waipahu on the island of Oahu, Hawaii, the station serves as a reference point for establishing accurate horizontal positions in the region. Trigonometric stations of this classification were traditionally established through triangulation methods and serve surveyors, engineers, and mapping professionals requiring precise geodetic control. The coordinates 21.48903° N, 158.02839° W define its location within the Hawaiian Islands. Verification and documentation of such benchmarks remain essential for maintaining the integrity of local and national surveying networks, enabling reliable land surveys, infrastructure development, and cartographic accuracy across the islands.

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