6 15 — NGS TU0537 — Honolulu County, US

This triangulation (trig) station is part of the National Geodetic Survey's network, which establishes the fundamental horizontal control framework for the United States. Located in Honolulu County, Hawaii, at coordinates 21.57581° N, 158.10637° W, this monument serves as a reference point for geodetic surveys and mapping activities throughout the region. Triangulation stations function as fixed control points, enabling surveyors and engineers to establish accurate positions for subsequent surveys, construction projects, and cartographic work. The NGS network remains integral to national mapping infrastructure, property boundary determination, and scientific applications requiring precise positional data. Verification and documentation of such benchmarks ensures continuity of geodetic control and facilitates interoperability between historical and contemporary survey work. Professionals are encouraged to report any changes to this monument's condition or accessibility to maintain the integrity of the national geodetic database.

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