MAUNA UNA RESET — NGS TU1632 — Waipahu, US

This triangulation (trig) station is part of the National Geodetic Survey's network, which establishes the geometric framework for surveying and mapping throughout the United States. Located near Waipahu on the island of Oahu, Hawaii, at coordinates 21.46589°, -158.07783°, this point serves as a control station for precise positioning and distance measurements in the region. Trig stations of this type traditionally supported classical surveying methods and continue to provide valuable reference points for modern geodetic work. The point's inclusion in the NGS registry ensures that surveying professionals can access consistent, documented reference data for boundary surveys, engineering projects, and geographic information systems applications. Verification and proper documentation of such monuments remain essential for maintaining the integrity of Hawaii's spatial reference framework and supporting accurate land surveys across the islands.

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