STATE SURVEY 9 7 1969 — NGS TU1651 — Kapolei, US

This triangulation station is part of the National Geodetic Survey's network of control points that form the foundation of the United States' geodetic infrastructure. Located near Kapolei, Hawaii, at coordinates 21.31855°N, 158.01407°W, this trig point serves as a reference for positioning and elevation surveys throughout the Hawaiian Islands region. Triangulation stations of this type were established to provide accurate horizontal control for mapping and surveying activities. The point's location in Hawaii reflects the geodetic network's nationwide coverage, including remote and insular areas. Documentation and verification of such control points remain valuable for surveyors, cartographers, and engineers requiring precise coordinate references for land surveys, construction projects, and infrastructure planning. Maintaining current records of these benchmark locations supports the integrity of spatial data systems and enables professionals to access reliable positional references.

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