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1971 Map of D Y Junction

Name: 1971 Topographic Map of D Y Junction
Creator: U.S. Geological Survey
Published: 1975
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1975

About this map

Thornhill Butte commands the northern landscape of this Phillips County region, rising above a network of drainages that define the high plains of north-central Montana. In the early 1970s, the road network centered on DY Junction, where highway 191 intersects with local routes near the southeastern portion of the map. This area is characterized by significant topographic features such as Bell Ridge and Siparyann Ridge, which separate the various coulees and creek beds that channel seasonal runoff.

Water management is evident at the Phillips Reservoir, located along Cottonwood Creek. The presence of Mud Spring and numerous smaller waterways like Siparyann Creek and Bull Creek underscores the importance of every water source in this arid environment. Industry in the area appears limited to several Gravel Pits concentrated in the northeast, indicating the localized extraction of materials for regional infrastructure.