The ski town known for A-list celebrities and waist-deep powder snow is also one of the most gorgeous places on the planet when the leaves are changing. The slopes are covered with the trees that gave the town its name, and they turn a brilliant orange, yellow, red, and gold for several weeks each fall before the snow falls. The trails around the town of Aspen are perfect for a bike ride or hike for a little exercise while taking in the sights.
Peak Season: Early October
When You're There: Lodging and restaurants in Aspen
Learn everything you want to know about trail running from this one book.