Three Sisters Skyline
Sisters, United States • 20 Sep 2025
The Three Sisters Skyline is a trail running event held in Sisters, Oregon, featuring two race distances: a 50K and a half marathon. The 50K course offers stunning views of the Three Sisters and other Cascade peaks, traversing single-track trails through Ponderosa Pines, alpine meadows, and areas recovering from a 2012 forest fire. It includes a steady climb of about 2,300 feet followed by a descent, totaling 3,700 feet of climbing and 4,700 feet of descent, with three aid stations. The half marathon is a point-to-point race with a net downhill of 1,500 feet, mostly on single-track trails, designed for fast times and scenic vistas. Both races finish in the mountain town of Sisters. Visit the organization's website for the most recent information.