DR LL — NGS DN4570 — Denver, US

This triangulation station is part of the National Geodetic Survey's horizontal control network, which establishes precise geodetic positions across the United States. Located near Denver, Colorado at coordinates 39.86482° N, 104.69025° W, this trig point serves as a reference monument for surveying and mapping operations in the region. Triangulation stations of this class provide fundamental horizontal control for high-precision surveying work, including cadastral surveys, engineering projects, and cartographic applications. The point's documented position enables surveyors and geodesists to tie local measurements to the national geodetic datum and coordinate system. Verification and maintenance of such benchmarks remain important for preserving the integrity of geodetic networks. Professional surveyors rely on these established control points to ensure accuracy and consistency across jurisdictional boundaries and project scopes.

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