SOH 30 — NGS DR2093 — Waipahu, US

This triangulation station is part of the National Geodetic Survey's legacy network that establishes the fundamental control framework for surveying and mapping across the United States. Located near Waipahu on the island of Oahu, Hawaii, this trig point serves as a reference for local and regional survey work. Triangulation stations of this classification were historically used to create positional control networks through intervisible sight lines, providing accurate coordinates for subsequent detailed surveys. The station's position at 21.31253°N, 158.00469°W contributes to Hawaii's geodetic infrastructure. Verification and documentation of such benchmarks remain valuable for maintaining survey continuity, validating modern positioning techniques, and preserving the historical record of geodetic control. Surveyors and mapping professionals rely on accurate knowledge of these reference points for quality assurance and legal boundary establishment.

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