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2011 Map of Big Sag

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

USGS Topo · Published 2011

About this map

Gossack Mountain and Harris Mountain dominate the central landscape of this Chouteau County region, where the terrain is defined by a complex network of coulees and seasonal drainages. The settlement at Big Sag sits at a critical junction of local transit routes, including Big Sag Dr and Highwood Rd, positioned near the intermittent waters of Big Sag Lake.

Tracing the southern reaches of the map reveals the importance of water management and local heritage, centered around the Highwood Creek corridor. The Highwood Creek Bridge provides a key crossing point near the Upper Highwood Cemetery, a significant site for genealogists researching the area's early ranching families. From the flowing Harris Spring to the branching paths of North Gap Creek and South Gap Creek, the map details a land of vast open space and essential cattle-country infrastructure.