Beartooth Highway is a National Scenic Byways All-American Road. It’s just about 70 miles and it winds its way through southwest Montana and northwest Wyoming, making its way across the rugged Beartooth Mountain Range and leading into Yellowstone National Park. The road is the highest elevation highway in the Northern Rockies and provides dramatic views, unlimited outdoor recreation opportunities, and unparalleled wildlife watching. Make sure you also stop at Clay Butte Fire Lookout Tower and Lake Creek Falls Bridge.