Highline is a short and fun trail that you can access at several locations, including Highline Rd. and Owl Creek Rd. The trail includes beginner and intermediate sections, with a couple steep portions depending on which direction you're riding (either way is fine).
The trail provides some spectacular views of Snowmass Village, Mt. Daly, and Capitol Peak. You can make a short loop by connecting to the adjacent Lowline trail which branches off towards either end of the Highline trail.