A gravel road to the historic Mullan Pass

Mullan Pass is a high mountain pass at an elevation of 1.799m (5,902ft) above the sea level, located on the boundary of Powell and Lewis and Clark counties, in the US state of Montana.

Mullan Pass

Tucked away in the Rocky Mountains of Montana, within the Helena National Forest, the road to the summit is called Austin-Mullan Pass Road. The road is all unpaved except for the Birdseye Road segment on the Helena side. The road offers plenty of room for two-way traffic, but typically suffers from bad washboards and an occasional rut. One day the road can be ‘smooth and easy to drive’, the next, it can be full of washboards that will bounce you right over the edge if you aren't careful. Road conditions are always changing. The pass was named after Lieutenant John Mullan. With proper driving, just about any vehicle could handle this road. Nevertheless, always be aware of conditions, your vehicle's capabilities, and your driving experience before deciding to drive this road.
Pic: By Kjmoss1 at English Wikipedia, CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=40648000