MAKAKILO — NGS TU1664 — Kapolei, US

This triangulation station is part of the NGS network, which establishes and maintains the fundamental geodetic reference framework for the United States. Located near Kapolei on the island of Oahu, Hawaii, this trig point serves as a control station for surveying and mapping activities across the region. With an ellipsoidal elevation of 312.5 m, the station provides a precisely documented spatial reference at coordinates 21.36056° N, 158.07578° W. Trig stations of this class function as primary control points, enabling surveyors and cartographers to conduct accurate positioning work and to validate local and regional survey networks. Verification and documentation of such benchmarks remain essential to maintaining the integrity of geodetic data, supporting infrastructure development, land surveying, and scientific applications. This point contributes to Hawaii's participation in the national geodetic datum system.

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