6 13 — NGS TU0561

This is a triangulation (trig) station within the National Geodetic Survey network, which establishes the foundational control framework for surveying and mapping throughout the United States. Trig stations serve as precisely positioned reference points used to support cadastral surveys, engineering projects, and geographic information systems. Located at coordinates 21.57899°N, 158.25119°W, this point falls within the Hawaiian archipelago region. As part of the NGS infrastructure, this station contributes to the horizontal control network essential for accurate spatial referencing across the islands. The elevation data for this benchmark has not been recorded in available documentation. Verification and documentation of such control points remain valuable for surveyors, engineers, and GIS professionals who depend on accurate geodetic infrastructure. Recovery and reobservation of established stations help maintain the integrity of the national geodetic network and support contemporary surveying activities.

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