KAALA — NGS TU1531

This triangulation station is part of the National Geodetic Survey's network, which establishes the fundamental control framework for surveying and mapping across the United States. As a trig point, it served as a reference station for precise horizontal positioning through triangulation methods, a cornerstone technique in geodetic surveying prior to and alongside modern satellite-based systems. Located at 21.50803°N, 158.14291°W in Hawaii, this point contributes to the regional geodetic infrastructure of the Pacific region. Trig stations of this type provide accurate ground-based control for local surveys, engineering projects, and cartographic work. While elevation data remains unrecorded in the registry, verification and documentation of such control points remain valuable for surveying professionals undertaking work requiring established reference coordinates. These stations anchor the geometric foundation upon which detailed local surveys depend.

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