The St Regis River begins at Lookout Pass in which mountain pass on the Idaho/Montana border?
Lookout Pass Lookout Pass is a mountain pass in the Rocky Mountains of the northwestern United States. In the Coeur d'Alene Mountains of the Bitterroot Range, the pass is on the border between Idaho and Montana, traversed by Interstate 90 (formerly U.S. Route 10) at an elevation of 4710 ft above sea level.
Stripe Mountain Stripe Mountain is the highest point in both the South Clearwater Mountains and the Clearwater Mountains as a whole, part of the Bitterroot Range and Rocky Mountains in the panhandle of Idaho in the Western United States. Its summit is at an elevation of 9001 ft and the mountain's ridgeline forms the boundary of Idaho County and Lemhi County. The Idaho County portion of the mountain lies within the Bitterroot National Forest and the Lemhi County portion of the mountain lies within the Salmon-Challis National Forest, and the entirety of the mountain lies within the Frank Church-River of No Return Wilderness Area.