From its headwaters high in the Centennial Mountains to the Beaverhead River, the Red Rock River flows through one of the most remote and people-less regions of Southwest Montana. The Red Rock flows through a borderland. The Centennial Valley stretches out to the north, broad and arid. To the south, the Centennial Mountains rear abruptly from the plain. Native Cutthroat trout and Arctic Grayling thrive in the Red Rock's mountain waters. Primitive backcountry roads provide the only access, virtually ensuring that anglers who venture out will have the river to themselves. From Upper Red Rock Lake down, canoeists can float the river, and after Lima Reservoir, you might be able to raft, if the weather is right. The Red Rock River flows through Red Rocks Lakes National Wildlife Refuge, and fishing is prohibited between Upper and Lower Red Rocks Lakes. However, the Refuge is a haven for wildlife viewing. Over two hundred species of birds call the Refuge home, including the rare trumpeter swan. In addition, moose and other land mammals populate the Refuge. With extraordinary views of the scenic Centennial Mountains and Valley, active populations of native fish, and the remote beauty of the Red Rocks Lakes, the Red Rock River offers visitors a chance to experience Montana's natural beauty.