2 — NGS TU0553 — Honolulu County, US

This triangulation station is part of the National Geodetic Survey's network, which establishes and maintains the foundational control points for the United States' surveying and mapping infrastructure. Located in Honolulu County, Hawaii, at coordinates 21.58111°, -158.20306°, this trig point serves as a reference for horizontal geodetic control. Triangulation stations of this type were historically observed and used to extend precise positional networks across regions. Such control points remain valuable for validating contemporary survey work, GPS observations, and mapping projects. The documented location and network affiliation enable surveyors and geodesists to assess relative accuracy of their own measurements and to reference positional data to the national datum. Verification and maintenance of established benchmarks support the integrity of surveying practice and ensure consistency in spatial data across multiple projects and decades of use.

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