RV 251 — NGS FR0031 — Coconino County, US

This triangulation station is part of the National Geodetic Survey's network of fundamental control points that form the backbone of geodetic infrastructure across the United States. Located in Coconino County, Arizona, at coordinates 35.82028° N, 112.25611° W, this trig point serves as a reference for precise positioning and mapping activities in the region. Triangulation stations of this type are established to provide accurate horizontal control for surveying, engineering, and cartographic projects. These monuments enable surveyors and geospatial professionals to tie local measurements to the national coordinate system. The documentation and verification of such benchmarks remain essential for maintaining the integrity of survey networks and ensuring consistency across multiple projects. Periodic inspection and confirmation of these reference points support the continued reliability of geodetic data used throughout Arizona and the broader surveying community.

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