L 15 — NGS TU0554 — Honolulu County, US

This trigonometric station is part of the National Geodetic Survey's fundamental network, which establishes the positional framework for surveying and mapping throughout the United States. Located in Honolulu County, Hawaii, near coordinates 21.58083°N, 158.20944°W, this trig point serves as a control station for horizontal positioning in the Hawaiian archipelago region. Trigonometric stations like this benchmark establish precise horizontal coordinates through triangulation and serve as foundational reference points for surveying operations, cartographic work, and infrastructure development. The NGS network remains essential for maintaining consistent spatial reference systems across the nation. Documentation and periodic verification of such control points preserve the integrity of the geodetic infrastructure. Surveyors and GIS professionals rely on established benchmarks to ensure accuracy in property boundary determination, construction projects, and geographic data collection. Maintaining accurate records of these reference stations supports long-term consistency in surveying standards.

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