Ancient Lakes Trail Run
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Event
The Ancient Lakes Trail Run takes place April 11-12, 2026 in Quincy, Washington, with the start/finish and parking at the Bishop Recreation Area near the Ancient/Dusty Lakes Trailhead. The event offers these distances:
- 50 Mile
- 50K
- Marathon
- 25K
- 10K
Saturday hosts the 50M, 50K, 25K and 10K (with an optional late start for 25K/10K). Sunday includes the marathon, 25K and 10K. Registration is final; refunds and deferrals are not offered. The event is USATF sanctioned.
Course and logistics
The course uses a cloverleaf design built around a larger 25K loop made of three subloops (red, green, blue), all beginning and ending at a central aid station. Trails are primarily single track with rolling terrain and limited continuous climbs or descents. Representative elevation and distance details include:
- 25K: about 17 miles and roughly 1,700 ft gain.
- 50K: about 34 miles and roughly 3,400 ft gain.
- 50M: about 51.5 miles and roughly 6,000 ft gain.
- Marathon: multiple loops with roughly 2,800 ft gain.
- 10K: single loop with roughly 700 ft gain.
Aid is provided from a central cupless aid station; runners must carry personal hydration of at least 16 oz. Drop bags are available at the start/finish and after each loop. Pacers are allowed only for the 50 Mile race and must sign a waiver and wear a pacer bib. Race packet pick-up occurs on race day at the trailhead. Camping is allowed at the parking area. Rules prohibit leaving trash on the course. Visit the organization's website for the most recent information.