Lulu Pass in MT is worth the white-knuckle drive

Lulu Pass is a high mountain pass at an elevation of 3.009m (9,872ft) above the sea level, located in Park County, Montana, in USA. It's one of the highest roads of Montana.

Lulu Pass

Nestled in the Beartooth range, the road to the summit is totally unpaved. It’s an old mining road. 4x4 vehicle required. It’s usually impassable from November to May. Near the summit are only a few historic ruins left from the New World Mining District.

The drive offers beautiful views of the Beartooth Mountains. It’s a pretty steep trail. Starting from US-212 (Beartooth Highway) the ascent is 8.36km (5.2 miles) long.
Pic: National Forest Camping Reviews