HO 2 — NGS TU0672 — Waipahu, US

This trigonometric station is part of the National Geodetic Survey's extensive network supporting the United States' geodetic infrastructure. Located near Waipahu on the Hawaiian Islands at coordinates 21.31444°N, 157.99861°W, this trig point serves as a horizontal control station for surveying and mapping operations. Trig stations of this classification function as monumented reference points, establishing accurate positions for subsequent surveys, engineering projects, and cartographic work. As components of the NGS network, such points maintain the geometric framework essential for property surveys, infrastructure development, and scientific applications across Hawaii's islands. Documentation and verification of existing benchmarks remain valuable for the surveying profession, enabling professionals to validate historical control networks and assess the continued utility of established geodetic monuments in an evolving landscape.

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