SOH 26 — NGS DR2089 — Waipahu, US

This trigonometric station is part of the National Geodetic Survey's fundamental control network, which establishes the geometric framework for surveying and mapping throughout the United States. Located near Waipahu on the island of Oahu, Hawaii, this point serves as a reference marker for horizontal position control in the Hawaiian archipelago. Trigonometric stations function as established survey monuments, providing precise coordinate reference for professional surveyors, cartographers, and engineering projects requiring accurate horizontal positioning. The NGS network represents decades of careful measurement and monumentation critical to the nation's surveying infrastructure. Documentation and verification of such points remain essential for maintaining positional accuracy in contemporary surveying work and for validating historical survey data. Professional surveyors routinely reference these established monuments to ensure consistency and reliability in local and regional surveys.

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