2017 Map of McClure Reservoir

About this map

McClure Reservoir and Silvertip Reservoir anchor this landscape along the border of Custer and Prairie Counties. The terrain is defined by a dense network of intermittent drainages, including the N Fork Crooked Cr and Lost Boy Cr, which reveal the complex erosion patterns of the eastern Montana plains. Named landmarks such as McClure Butte and Eagle Butte rise above the surrounding drainages, serving as essential points of orientation in a region largely devoid of major infrastructure. The distribution of small water sources like Bootlegger Spring and Johnson Spring, alongside the Hunter Cr Reservoir, underscores the critical importance of water management in this cattle-ranching and grazing country. This survey illustrates how the land is organized into the Public Land Survey System, with township and range lines like T13N R49E guiding the division of these wide-open spaces.