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1967 Map of Big Marys Island

Name: 1967 Topographic Map of Big Marys Island
Creator: U.S. Geological Survey
Published: 1971
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1971

About this map

The Yellowstone River dominates this mid-century landscape in Yellowstone County, Montana, carving a wide path through the prairie terrain. At the center of this reach lies Big Marys Island, a large landform situated within the river's main channel. The map illustrates the sophisticated water management and transportation systems that defined the region's development during the late 1960s, including the Pacific Clark and Lewis Main Canal and the Northern Pacific railroad line.

Upland from the river, the topography is dissected by numerous drainage features such as Devils Gulch, Lost Cabin Coulee, and Railroad Creek. The presence of the Huntley Trail and several wells indicates the continued agricultural and pastoral utility of the land. In the southern portion, industrial activity is noted with a Gravel Pit and prominent Radio Towers, reflecting the intersection of natural resources and modern infrastructure in the Missouri River Basin.