BARBERS POINT LIGHTHOUSE NEW — NGS TU1674 — Kapolei, US

This triangulation station is part of the NGS network, which provides the foundational geodetic control for surveying and mapping activities throughout the United States. Located near Kapolei on the Island of Oahu, Hawaii, at coordinates 21.29638°N, 158.10617°W, this trig point serves as a reference marker for establishing horizontal positions in its vicinity. Triangulation stations of this type have historically supported large-scale surveys and continue to provide valuable validation points for modern positioning networks. The documented coordinates enable surveyors and engineers to tie local measurements to the national datum, ensuring consistency and accuracy across projects. Verification and maintenance of such benchmarks remain important for quality assurance in surveying work. Even when elevation data is unavailable, the horizontal coordinates provide significant utility for geodetic control and as tie points for GPS and conventional surveying operations in this region of Hawaii.

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