Elden Ridge Run

Event

The Elden Ridge Run in Flagstaff, AZ is listed as a 1/2 Marathon on Saturday, October 17, 2026; the date is not final and is subject to change. Registration opens April 1, 2026. There will be no race day registration. Bibs will not have timing chips; results will be recorded as gun times. Prize and bib pickup details are to be announced. Refunds are not offered; no future race credit will be issued if a participant cancels or if the event is canceled for reasons outside organizer control.

Course

The out-and-back course starts and finishes at Sandy Seep Trailhead. The route follows Christmas Tree trail to Elden Lookout trail and reaches the summit of Mt. Elden, then descends via lookout tower road to Sunset trail and New Heart trail before returning via Old Little Elden and Christmas Tree trail to the finish. The single aid station is located at approximately 6 miles and about 1 mile from the summit; it will provide water, some fuel options, and an electrolyte beverage. The course contains single track, technical sections, rocky "Arizona chunk," rollers, and a significant climb to the summit.

Logistics and Rules

There is a strict 2-hour cutoff at about 5 miles/summit and a total race cutoff of 4 hours. Parking is at Sandy Seep Trailhead - a primitive lot with space for no more than 30 vehicles; high clearance vehicles are recommended and carpooling is advised. No pacers or external aid are allowed. Poles are permitted if carried for the entire race. Two portable toilets will be available at start/finish; no running water. Visit the organization's website for the most recent information.