Three Sisters Skyline
Sisters, United States • 19 Sep 2026
Three Sisters Skyline
Three Sisters Skyline is a trail event held in Sisters, Oregon, with courses that run near the Three Sisters and other high Cascade peaks. Routes pass through Ponderosa pine stands, areas of forest regrowth from a 2012 fire, alpine meadows, and alongside a mountain stream. Courses finish in the town of Sisters and start at Village Green City Park.
The event offers two race distances and varied terrain. The 50K features long single track sections, sustained climbing and descending, and multiple aid stations. The half marathon is a point to point course with a net downhill and a single aid station. Most trail surfaces are single track.
Distances:
- 50K: 95% single track, 3700 ft climbing, 4700 ft descent, three aid stations
- Half marathon: Point to point, 85% single track, net 1500 ft downhill, one aid station
Registration closes on Mon, Sep 14 at 11:59 PM PT. Entry policies include no transfers to other runners. Cancellations more than 30 days before the race may receive a 50% credit for the same event the following year; cancellations 30 days or less receive no credit, refund, or transfer. If the organizer cancels an event that cannot be feasibly rescheduled, refunds or credits will not be given. Registration fees support Sisters Trail Alliance. Visit the organization's website for the most recent information.