161 2668 TIDAL 4 — NGS TU0534 — Honolulu County, US

This triangulation station is part of the National Geodetic Survey's network of control points that establish the horizontal and vertical reference framework for the United States. Located in Honolulu County, Hawaii, at coordinates 21.59301°N, 158.10639°W with an ellipsoidal elevation of 16.5 meters, this trig point serves as a fundamental control station for surveying and mapping activities throughout the islands. Triangulation stations of this classification provide monumented reference marks essential for surveying operations, engineering projects, and geographical positioning work. The NGS network ensures consistent, accurate geodetic control across all states and territories. Regular verification and documentation of such benchmarks maintain the integrity of the national spatial reference system, supporting professional surveying practice and enabling reliable coordinate determinations for construction, cadastral work, and geographic information systems applications.

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