F 377 — NGS HS3709 — Clayton, US

This triangulation station is part of the National Geodetic Survey's network of control points that form the foundation of the United States' horizontal geodetic datum. Trig stations serve as precisely positioned reference points essential for large-scale surveying, mapping, and engineering projects. Located near Clayton, California, in the East Bay region, this benchmark provides local surveyors and engineers with a reliable control point for establishing accurate measurements and coordinates across the area. The NGS network integrates thousands of such monuments into a coherent system referenced to standardized datums. Verification and documentation of existing benchmarks remain critical to modern surveying practice, ensuring that infrastructure development, cadastral surveys, and geographic information systems maintain spatial accuracy and consistency. This point contributes to the broader geodetic infrastructure supporting regional and national mapping initiatives.

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