ANTENNA — NGS TU1570

This triangulation station is part of the National Geodetic Survey's primary control network, which establishes the foundational reference framework for surveying and mapping across the United States. Triangulation points of this type serve as precisely positioned monuments used to support boundary surveys, engineering projects, and cartographic work. Located in Hawaii at coordinates 21.56104°N, 158.23878°W, this benchmark contributes to regional geodetic control in the Pacific region. As a trig station, it was established to provide accurate horizontal positioning data through sightline measurements to other known points. Modern surveyors and GIS professionals rely on documented control points to validate survey work and ensure spatial data accuracy. Verification and proper documentation of such monuments remain essential for maintaining the integrity of the national geodetic network and supporting precise surveying operations.

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