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.
Ashnola Mountain Ashnola Mountain is a mountain in the Okanagan Range of the North Cascades in Washington state, located near Ashnola Pass and the headwaters of the Ashnola River, which flows north into British Columbia, Canada, to join the Similkameen River.