1980 Map of Dunn Mountain North

About this map

Dunn Mountain anchors this 1980 study of the high country along the border of Musselshell and Yellowstone Counties. The landscape is defined by its complex drainage network and numerous water sources, including the headwaters of East Spring Creek, Fattig Creek, and Dutch Oven Creek. The terrain is marked by isolated peaks such as Johnston Mountain and several named springs and wells that supported ranching and transit through this portion of the northern plains. The presence of Railroad Creek suggests the historical pathways carved through these ridges, while features like Rehder Water reflect the vital importance of water management in this arid environment. This map serves as a clear record of the late 20th-century topography before modern developments changed the character of these rural county lines.