Upper Missouri River Breaks National MonumentContaining a spectacular array of biological, geological, and historical objects of interest, the Upper Missouri River Break National Monument spans 149 miles of the Upper Missouri River.
From
Fort Benton to the Charles M. Russell National Wildlife Refuge, the monument includes six wilderness study areas, the Cow Creek Area of Critical Environmental Concern, segments of the
Lewis and Clark National Historic Trail and the Nez Perce National Historic Trail, the Fort Benton National Historic Landmark, and more.
