NS 2 — NGS DR2309 — Kapolei, US

This triangulation station is part of the National Geodetic Survey's fundamental control network, which establishes the geometric framework for surveying and mapping across the United States and its territories. Located near Kapolei on the island of Oahu, Hawaii, this trig point serves as a reference for local surveys, engineering projects, and geographical information systems throughout the region. Triangulation stations of this type were historically critical to establishing accurate positional control across areas lacking other reference infrastructure. The coordinates 21.34747°N, 158.05044°W represent the station's published position within the NGS database. Professional surveyors and engineers rely on such benchmarks to verify instrument calibration, establish project baselines, and maintain positional consistency in mapping efforts. Verification and documentation of these points remain valuable for quality assurance in modern surveying practices, particularly when conducting work requiring ties to the national geodetic datum.

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