AIR — NGS TU1660 — Kapolei, US

This triangulation station is part of the National Geodetic Survey's network, which establishes and maintains the foundational control infrastructure for surveying and mapping throughout the United States. Located near Kapolei on the island of Oahu, Hawaii, this trig point serves as a reference monument for horizontal position control in its region. Triangulation stations of this classification were traditionally established to support large-scale surveying operations and mapping projects. Their precise coordinates enable surveyors, engineers, and cartographers to reference their local measurements to the national coordinate system. The documented location at 21.31566°N, 158.06228°W provides a known control point for subsequent surveys and projects in the vicinity. As Hawaii's geography and infrastructure continue to develop, verification and documentation of existing geodetic monuments remain valuable for maintaining survey accuracy and continuity across generations of surveying work.

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