PI MON 1 A — NGS TU1721 — Kapolei, US

This triangulation station is part of the National Geodetic Survey's fundamental control network, which establishes the geometric framework for surveying and mapping across the United States. Located near Kapolei on the island of Oahu, Hawaii, this trig point serves as a reference for regional surveys and mapping projects. Triangulation stations of this type provide horizontal control through precise coordinate documentation at specific locations. The point's coordinates, 21.38355° N, 158.14763° W, contribute to Hawaii's surveying infrastructure and support both civilian and government surveying operations. Verification and documentation of such benchmarks remain essential for maintaining accurate cadastral records, infrastructure development, and surveying continuity. Professionals conducting field work in this region may reference this station for establishing local control networks and validating survey measurements.

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