5 6 — NGS TU0496 — Honolulu County, US

This triangulation station is part of the National Geodetic Survey's control network, which establishes the primary geodetic framework for the United States. Situated in Honolulu County, Hawaii, at coordinates 21.63318°N, 157.92126°W, this trig point serves as a survey control station for horizontal positioning and mapping applications across the Hawaiian Islands region. Triangulation stations of this type form essential reference points for accurate surveying, mapping, and geographic information system development. Their precise locations enable surveyors and engineers to conduct local surveys with established accuracy standards. Documentation and verification of such benchmarks remain critical for maintaining the integrity of the national geodetic network and ensuring consistency across surveying projects. Regular inspection and recovery of these monuments help preserve institutional knowledge and support ongoing spatial data infrastructure in both government and private surveying operations.

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