620 — NGS MB1580 — Cleveland, US

This triangulation station is part of the National Geodetic Survey's network, which establishes the foundation for precise positioning and surveying across the United States. Located near Cleveland, Ohio, at coordinates 41.59500° N, 81.55006° W, this trig point serves as a control station for geodetic measurements and mapping activities in the region. Triangulation stations of this type historically provided essential reference points for establishing accurate horizontal control networks. Such benchmarks remain valuable for surveyors, engineers, and mapping professionals conducting work in the area. Verification and documentation of these points ensures continuity of the geodetic datum and supports modern surveying operations that may rely on legacy control networks as supplementary references or for validation purposes.

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