BB 2 — NGS DI2785 — Kapolei, US

This triangulation station is part of the National Geodetic Survey's network, which establishes the fundamental control framework for surveying, mapping, and positioning throughout the United States. Located near Kapolei, Hawaii, at coordinates 21.32917°N, 158.05488°W, this trig point serves as a reference for local and regional surveys requiring high-precision horizontal control. Triangulation stations like this were historically observed and computed to provide accurate positional data across extensive areas. The ellipsoidal elevation of 32.7 meters is documented for vertical reference purposes. Modern surveyors rely on documented NGS control points to validate measurements, establish local networks, and ensure consistency in mapping projects. Verification and maintenance of such marks contribute essential spatial accuracy to infrastructure planning, land surveying, and geospatial applications across Hawaii.

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