YMCA — NGS TU1562

This triangulation station is part of the NGS geodetic network, which establishes the fundamental horizontal control framework for surveying and mapping activities throughout the United States. As a trig point, this benchmark serves as a reference station for triangulation work, enabling surveyors and engineers to perform accurate positional measurements across regional and local projects. The station is located in Hawaii, positioned at 21.57939° N, 158.22419° W. Trig points of this classification support precise geodetic observations and maintain consistency within the national coordinate system. Documentation and periodic verification of such control points remain essential for preserving survey accuracy over time and ensuring reliable reference data for subsequent surveying operations. The maintenance of these established monuments contributes to the integrity of Hawaii's geodetic infrastructure and supports essential activities including construction, land management, and scientific measurement.

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