R 3 RM 1 — NGS TU0628 — Kapolei, US

This triangulation station is part of the National Geodetic Survey's network, which establishes the fundamental horizontal control framework for the United States. Located in the Kapolei area of Hawaii at coordinates 21.32712°N, 158.06210°W, this trig point serves as a reference for surveying, mapping, and positioning activities across the Hawaiian Islands. As a triangulation station, it was established to provide accurate geodetic control through intervisible networks of precisely measured points. Such marks remain essential for cadastral surveys, engineering projects, and maintaining the National Spatial Reference System. The documented location and accessibility of this benchmark support professional surveyors and geospatial practitioners requiring reliable control points. Verification and maintenance of such reference marks ensure the continued accuracy of surveying operations and mapping products throughout the state.

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