RADIO RM 1 — NGS TU0587 — Waipahu, US

This triangulation station is part of the NGS network, which establishes and maintains the primary geodetic framework for the United States. Located near Waipahu on the island of Oahu, Hawaii, at coordinates 21.52080°N, 157.99726°W, this trig point serves as a horizontal control station for surveying and mapping operations across the Hawaiian Islands region. Triangulation stations of this type have historically provided precise horizontal positioning data essential for large-scale surveying projects, cadastral mapping, and engineering works. The NGS network forms the backbone of Hawaii's surveying infrastructure, enabling consistent coordinate references for both public and private surveying activities. Verification and documentation of such benchmark stations remain valuable for surveying professionals conducting work in Hawaii, as these points provide established, traceable reference locations that support accuracy and interoperability across surveying projects.

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