SOH 44 — NGS DR2106 — Waipahu, US

This triangulation station is part of the NGS network, which establishes the primary geodetic framework for the United States. Located near Waipahu on the island of Oahu, Hawaii, at coordinates 21.41242°N, 158.04519°W, this trig point serves as a horizontal control reference for surveying and mapping activities throughout the region. Triangulation stations function as monumented ground control points, enabling surveyors and cartographers to reference their local measurements to the national coordinate system. Such points support boundary determinations, infrastructure development, and scientific studies requiring precise positional data. The documentation and periodic verification of benchmarks like this remain essential for maintaining geodetic network integrity. As surveying technology evolves, the continued accessibility and confirmation of these classical control points ensures consistency between modern measurements and the established geodetic datum.

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