NANAKULI USN LAB 111 S STA — NGS TU1689 — Kapolei, US

This triangulation station is part of the National Geodetic Survey's network, which establishes the fundamental geodetic framework for the United States. As a trig point, this station served as a control point for survey networks, enabling accurate horizontal positioning across the Hawaiian Islands. Located near Kapolei on the island of Oahu, this benchmark contributes to the regional geodetic infrastructure supporting cadastral surveys, engineering projects, and geographic information systems throughout Hawaii. The coordinates are referenced to standard geodetic datums. Verification and documentation of such control points remain valuable for surveyors and engineers requiring positional accuracy, particularly in areas where modern GPS networks may benefit from ground-based reference verification. Maintenance of records for these established stations supports continuity of surveying practices and historical geodetic data preservation.

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