RV 256 — NGS FR0039 — Coconino County, US

This triangulation station is part of the National Geodetic Survey's legacy control network, which establishes the fundamental geodetic framework for the United States. Trigonometric stations of this type served as cornerstones for classical surveying operations, providing accurate horizontal positions for mapping, boundary establishment, and engineering projects across the country. Located in Coconino County, Arizona at coordinates 35.92500°N, 112.21361°W, this benchmark represents a fixed reference point within the regional survey network. Triangulation stations enabled surveyors to extend positional control across large areas through intervisible networks of marked points. Documentation and periodic verification of such benchmarks remain valuable for surveyors undertaking boundary work, construction projects, and geodetic research. Even historical control points contribute essential information to understanding the development of surveying networks and ensuring consistency across regional datasets.

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