Beartooth Highway
Driving south from Red Lodge along the 68-mile Beartooth Highway (U.S. 212) will take you over the precipitous 11,000-foot Beartooth Pass as the road winds its way through lush alpine country to the "back door" of Yellowstone National Park. With multiple steep climbs and switchbacks, this National Scenic Byway was a feat of 1930s engineering. The highway is usually open from late May to mid-October, but snow can close it at any time of the year. You'll find trailheads for several good hikes along the route.