U 1253 — NGS HT1862 — Oakland, US

This triangulation station is part of the National Geodetic Survey's trig network, which forms a foundational component of the United States' geodetic reference system. Located in the Oakland, California area at coordinates 37.77611°N, 122.16389°W, this point serves as a reference marker for surveying and mapping activities across the region. Triangulation stations of this type were established to create accurate positional control networks essential for cadastral surveys, engineering projects, and cartographic work. The trig network provides monumented points whose coordinates have been precisely determined through geodetic measurement. Documentation and verification of such benchmarks remain valuable for surveyors requiring reliable reference points for local projects. Even where elevation data may be incomplete, the horizontal coordinates provide critical control information. Maintaining accurate records of these geodetic monuments supports the continuity of surveying standards and enables professionals to correlate historical and contemporary survey work.

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