1987 Map of Milligan Canyon

About this map

Milligan Canyon carves through this portion of southwest Montana, where the high-altitude terrain is defined by water sources like Shoddy Springs and Cowan Spring. The settlement of Milligan and the nearby Silver Sage Ranch represent the sparse but resilient agricultural and ranching footprint in the late 20th century. The landscape is marked by the presence of Milligan Creek, which follows the canyon floor, and modern infrastructure like Trans Lines and Storage Bins that suggest a continued utility of the land for livestock and energy transport. Straddling the boundary of Jefferson and Broadwater Counties, the map illustrates a transition between cattle ranching outposts and the open, high plains characteristic of the region.