65.2 miles: 2 hours, 48 minutes
The sparse woodlands near the tree line of this mountainous region allow for an unusually expansive panorama that account for the name of the Top of the World Scenic Highway (PR 9). The brush turns vibrant colors—crimson, orange and yellow—in fall. Nine miles out of Dawson City, Yukon, a short trail leads to spectacular views of mountains and the Yukon River. Although the route consists of well-maintained paved and gravel roads, go slow on the steep, twisting descent into Alaska.