HDH A — NGS AA3572 — Honolulu County, US

This triangulation station is part of the National Geodetic Survey's network, which provides the foundational horizontal and vertical control for surveying and mapping across the United States. Located in Honolulu County, Hawaii, this trig point serves as a reference station for establishing local survey networks and verifying positional accuracy in the region. Triangulation stations of this type were historically occupied to create precise geometric networks across the landscape. The station's documented ellipsoidal elevation of 19.2 meters and geographic coordinates provide essential data for surveyors, engineers, and geospatial professionals conducting work in the Hawaiian Islands area. Verification and maintenance of established benchmarks remain important for quality assurance in modern surveying projects. This point's continued documentation in the NGS registry supports geodetic consistency and allows professionals to reference reliable control data when performing boundary surveys, construction layout, or geospatial analysis in this locality.

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