BALCH — NGS RD3054 — Portland, US

This triangulation station is part of the National Geodetic Survey network, which establishes the fundamental control framework for surveying and mapping activities throughout the United States. Triangulation stations serve as precise reference points for horizontal positioning, enabling surveyors, cartographers, and engineers to conduct accurate measurements and establish local survey networks. Located near Portland, Oregon, at coordinates 45.53135°, -122.70940°, this benchmark contributes to regional geodetic control in the Pacific Northwest. The station's documented position allows professionals to verify measurements, establish baselines for construction projects, and maintain consistency across surveying efforts. Verification and documentation of such control points remain essential for maintaining the integrity of the national geodetic network. Regular confirmation of benchmark locations and conditions ensures their continued utility for surveying operations and provides continuity for future projects requiring precise horizontal reference data.

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