D 14 — NGS TU0620 — Kapolei, US

This triangulation station is part of the National Geodetic Survey's trig network, which forms a fundamental component of the United States' geodetic control infrastructure. Located near Kapolei on the island of Oahu, Hawaii, at coordinates 21.34936°N, 158.12861°W, this point serves as a reference marker for surveying and mapping operations across the Hawaiian Islands region. Triangulation stations of this type were established to provide accurate positional control for cadastral surveys, engineering projects, and geographic information systems. The point's documented location enables surveyors and cartographers to reference their work to the national coordinate system with measurable precision. Verification and maintenance of such benchmarks remain essential for ensuring the integrity of surveying data, supporting infrastructure development, and preserving the historical geodetic record. This point contributes to the broader network that underpins land surveys and spatial data across Hawaii.

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