2014 Map of Cow Island

About this map

The Missouri River cuts a wide, winding path through this northern Montana landscape, serving as the historical boundary between Blaine, Phillips, and Fergus counties. At the heart of the river's bend lies Cow Island, a notable landmark in a region defined by its deep drainage networks and high ridges. The map illustrates the rugged hydrology of the Missouri Breaks, where numerous tributaries such as Cow Creek, Cabin Cr, and Bull Cr carve through the terrain to meet the main channel.