KEAAU 2 — NGS TU1718

This triangulation station is part of the National Geodetic Survey network, which maintains the fundamental control framework for surveying and mapping throughout the United States. Trig stations serve as precisely positioned reference points established through classical triangulation methods to support terrestrial surveys, engineering projects, and geographic information systems. Located at 21.49018°N, 158.20816°W, this point falls within the Hawaiian archipelago region. Triangulation stations of this type typically mark elevated or strategically visible locations chosen for optimal sightline geometry during network establishment. Recovery and verification of such benchmark monuments remains important for modern surveying operations. Documentation of coordinates, physical condition, and accessibility assists practitioners in applying historical control networks to contemporary projects. Accurate positional data for these reference points supports continuity in geodetic infrastructure across generations of surveying practice.

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