2014 Map of Nelson Coulee

About this map

The Musselshell River defines the winding boundary between Petroleum and Garfield counties in this central Montana landscape. This 2014 survey captures a sparsely populated region characterized by dramatic drainage systems, including Nelson Coulee, Sherman Coulee, and Powell Coulee. These features carve through the high plains, funneling seasonal waters toward the river valley. Sparse human infrastructure is confined to few improved routes like Rivendell Rd and Dunn Ridge Rd, alongside a network of trails. Local history is anchored at the isolated Coon Cem, while the presence of School Section Spring and named meadows like The Willows highlight the critical importance of water sources in this arid ranching country. Tributaries such as Lodgepole Cr and Dovetail Cr further illustrate the intricate watershed that sustains the local environment.