D 9 — NGS PY0121 — Park County, US

This triangulation station is part of the National Geodetic Survey's network, which establishes the official horizontal and vertical control framework for the United States. Situated in Park County, Wyoming at coordinates 44.82028°N, 110.72806°W, this trig point serves as a surveying reference for local and regional geodetic work. Triangulation stations historically provided precise positional control by establishing sightlines between elevated stations across the landscape. Modern surveyors and GIS professionals rely on documented benchmarks to maintain positional accuracy in mapping, construction, and infrastructure projects. Verification and documentation of such control points remain essential for quality assurance in surveying practice. Even where elevation data may be incomplete, the horizontal coordinates provide valuable reference information for local surveyors conducting field work in this region of Wyoming. Maintaining accurate records of these stations supports continuity in geodetic infrastructure.

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