sentences:  Hell Roaring Creek flows west into the Red Rock River, which flows through Upper, then Lower Red Rock Lakes, west through Lima Reservoir, and then northwest into Clark Canyon Reservoir.From Clark Canyon Reservoir the Beaverhead River flows northeast to join the Big Hole River, forming the Jefferson River, which with the Madison and Gallatin Rivers form the Missouri at Missouri River Headwaters State Park at Three Forks, Montana.Brower's location is just below a ridge extending to the southeast from Mt.