STATE SURVEY 8 7D — NGS TU1729 — Kapolei, US

This triangulation station is part of the National Geodetic Survey's network of reference points that establish the geometric foundation for mapping and surveying across the United States. Situated in the Kapolei area of Hawaii, this trig point serves as a horizontal control station, providing accurate coordinate positioning for regional surveys and mapping projects. Trigonometric stations such as this are critical components of geodetic infrastructure, enabling surveyors and engineers to reference their local work to the national coordinate system. The point's documented position at 21.40045°, -158.17527° provides a monumented reference for establishing surveys, boundary determinations, and spatial data collection throughout the Hawaiian Islands. Verification and maintenance of NGS benchmarks remain important for preserving measurement consistency in surveying practice. Regular documentation of such control points ensures their continued utility for professional surveying and mapping activities.

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