STATE SURVEY 8 9A HARRIET — NGS TU1683 — Kapolei, US

This triangulation station is part of the National Geodetic Survey's network of control points that establish the horizontal geodetic framework for the United States. Positioned near Kapolei on the island of Oahu, Hawaii, this trig point serves as a reference for mapping, surveying, and engineering projects throughout the Hawaiian Islands region. Trigonometric stations of this classification provide precise positional data for cadastral surveys, infrastructure development, and scientific applications. The coordinates 21.36973°N, 158.13588°W define its location within the broader National Spatial Reference System. Documentation and verification of such benchmarks remain essential for maintaining the integrity of surveying networks, ensuring consistency across multiple projects, and supporting land records management. Regular confirmation of these control points' accessibility and condition is valuable for the surveying profession and government agencies relying on accurate positional references.

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