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2011 Map of Boggs Island

Name: 2011 Topographic Map of Boggs Island
Creator: U.S. Geological Survey
Published: 2011
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 2011

About this map

The Missouri River carves a sweeping path through this Chouteau County landscape, defining the character of the southern terrain. This 2011 survey highlights the seasonal water management critical to Montana ranching, evidenced by numerous small-scale water projects including Dyan Dam, Dtonysia Dam, and the Halverson Ranch Incorporated Number 1 Dam. These features, along with names like Tryannosaurus Dam and Diomedes Dam, suggest a localized system of reservoirs and cattle tanks designed to capture runoff from various draws and coulees.

Transportation in this area remains tethered to the river's geography. The settlement of Virgelle stands near the riverbank, serving as a focal point for local routes like Virgelle Ferry Rd N. The most significant river crossing depicted is the Virgelle Ferry, a rare functional link across the Missouri. Further north, the landscape is etched by drainage patterns such as Dry Fork Coulee and Sixmile Coulee, which traverse the high ground near Twelve Mile Coulee Rd.