Tags: Mountain Pass.
Banner Creek Summit is a mountain pass in central Idaho at an elevation of 7037 feet (2145 m) above sea level on State Highway 21 the Ponderosa Pine Scenic Byway. It is located on the border of Custer County and Boise County also the border of the Challis and Boise National Forests immediately northwest of the Sawtooth Range.Banner Creek Summit also marks the divide between the Salmon River and Payette River drainage areas.