Tags: Mountain Pass.
Mullan Pass is a mountain pass in the Rocky Mountains of Montana in the United States. It sits on the Continental Divide on the border between Powell County and Lewis and Clark County 13.25 miles (21.32 km) west of Helena in the Helena National Forest at an elevation of 5902 feet (1799 m).The Northern Pacific Railway (NP) used the pass for its line from Logan Montana to Garrison Montana via Helena built in 1883.
