Ancient Lakes Trail Run

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.