STATE SURVEY 9 10 — NGS TU1629 — Waipahu, US

This triangulation station is part of the National Geodetic Survey's network, which forms the foundation of the United States' geodetic control infrastructure. Located near Waipahu on the island of Oahu, Hawaii, this trig point serves as a horizontal control station for surveying and mapping operations across the Hawaiian Islands region. Triangulation stations of this type have historically provided essential geometric framework for establishing accurate positions and elevations. The coordinates 21.43848°, -158.05952° represent the horizontal position of this benchmark. Documentation and verification of such control points remain valuable for surveyors, engineers, and geospatial professionals conducting work in Hawaii. Regular confirmation of benchmark positions helps maintain the integrity of the geodetic network and supports precision surveying activities.

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