R 16 — NGS TU0491 — Honolulu County, US

This trigonometric station is part of the National Geodetic Survey's network, which establishes the fundamental geometric framework for surveying and mapping throughout the United States. Trigonometric points serve as control stations that enable precise horizontal positioning for surveying operations and geographic data collection. Located in Honolulu County, Hawaii, this benchmark contributes to geodetic infrastructure in a region where accurate positioning is essential for infrastructure development, land management, and scientific applications. The coordinates 21.60703°, -157.90533° define its reference location within the national coordinate system. Documentation and verification of such control points remain valuable for surveyors, engineers, and scientists who depend on reliable positional references. Periodic confirmation of benchmark stability and accessibility supports the continued utility of NGS networks for professional surveying work throughout the island region and broader Pacific area.

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