TT 3B — NGS AA3438 — Douglas County, US

This triangulation station is part of the NGS network, which maintains the fundamental geodetic framework supporting surveying and mapping activities across the United States. Positioned in Douglas County, Colorado, at 39.21682° North latitude and 104.68189° West longitude, this trig point serves as a horizontal and vertical control reference for regional surveys. The ellipsoidal elevation of 2125.8 meters reflects the point's position on the Colorado Front Range landscape. Trig stations like this provide monumented positions of known, high-precision coordinates that surveying professionals use to establish local control networks, verify instrument accuracy, and conduct cadastral and engineering surveys. The continued documentation and verification of such benchmark locations remains essential for maintaining the integrity of the national spatial reference system and supporting infrastructure projects, property boundary determinations, and scientific applications requiring reliable geodetic data.

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