The Beaverhead Mountains forms the Idaho/Montana border and the Continental Divide for nearly 200 miles, from Chief Joseph Pass and Montana-43, north of Salmon, to Monida Pass and I-15, north of Dubois. Many maps still call this range the Bitterroot Mountains. The Beaverhead crest is graced with pristine glacial cirques, massive limestone cliffs, knife-edged ridges and dozens of imposing summits. It has, for the most part, a single spine and only two significant subsidiary ridges. This crest stays above 8,000 feet for its entire length and is highlighted by two high, rugged segments: One near Salmon and one at the range's southern terminus.