STATE SURVEY 8 7E SLIM REF 19 — NGS TU1728 — Kapolei, US

This triangulation (trig) station is part of the National Geodetic Survey network, which establishes the fundamental horizontal and vertical control framework for the United States. Located near Kapolei on the island of Oahu, Hawaii, at coordinates 21.39830° N, 158.17149° W, this point serves as a reference station for surveying, mapping, and engineering projects across the region. Trig stations function as precisely positioned monuments that support cadastral surveys, infrastructure development, and geospatial analysis. The NGS network provides essential geodetic infrastructure for both government and private surveying activities. Documentation and verification of such control points remains valuable for maintaining positional accuracy in surveying work and for understanding local datum relationships. Professional surveyors rely on registered benchmarks to ensure consistent spatial reference across projects.

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