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2017 Map of Ledger NW

Name: 2017 Topographic Map of Ledger NW
Creator: U.S. Geological Survey
Published: 2017
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 2017

About this map

The Marias River carves a deep, winding path through this portion of the Montana plains, creating a landscape defined by dramatic elevation changes and numerous drainage coulees. The river's corridor is the central geographical feature, flanked by Marias Acres and the industrial activity of Shelby Sand and Gravel. Away from the river breaks, the land transitions to a high-prairie plateau managed for water storage and ranching, evidenced by the Ed McIntyre Reservoir and Wanken Reservoir.

Local landforms are named for the families and physical traits of the region, including Moore Coulee, Russell Coulee, and Twin Coulee. This 2017 survey reflects the persistent rural character of the Toole and Pondera County line, where modern infrastructure like Hwy 91 and Marias Valley Rd follows the contours of the land. The presence of the K 9 Ditch highlights the critical role of irrigation in this semi-arid environment, supporting the agricultural life that has defined this northern territory for generations.