M 13 — NGS MB1274 — Westlake, US

This triangulation station is part of the National Geodetic Survey's network of primary control points that establish the geometric framework for mapping and surveying across the United States. Located near Westlake, Ohio, at coordinates 41.47667° N, 81.88194° W, this trig point serves as a reference for horizontal position control in the regional geodetic infrastructure. Triangulation stations of this type were historically established through intervisible networks and precise angular measurements. Such monuments provide essential reference data for professional surveyors, engineers, and cartographers requiring accurate positional information. The point's documented coordinates enable verification of modern survey work and GPS observations, maintaining consistency across survey projects in northeastern Ohio. Continued documentation and field verification of these control points ensures the integrity of the geodetic datum and supports reliable spatial positioning for both historical and contemporary surveying applications.

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