Spence Mountain Run

The eighth edition of the Spence Mountain Run is set for Saturday, May 30, 2026, at Eagle Ridge Road in Klamath Falls, Oregon. Organized by the Linkville Lopers, this trail running festival offers four distinct distances: a grueling 50K, a challenging 30K, an invigorating Half Marathon, and a scenic 5 Miler. The event's course is primarily single track trails (95 percent) with some forest and logging roads for variety.
Registration closes on May 28 at 11:59 PM PT, but race day registration remains open without the inclusion of meal tickets unless preordered in advance. All participants must adhere to a strict cutoff time of 3:00 PM sharp regardless of their start times.
The event kicks off with the most ambitious distance, the 50K, at 7:00 AM, followed by the 30K starting an hour later and the Half Marathon beginning at 8:30 AM. The final race, the 5 Miler, starts promptly at 9:00 AM. Each course features strategically placed aid stations to support runners throughout their journey.
For the 50K, participants will complete a lap of the Half Marathon route followed by another loop on the 30K trail. Aid station locations include Junction 5 (twice), Junction 7, and Highway 140 with specific water-only stops at key points along the way. The 30K course offers mixed terrain including single track trails and forest roads, with aid stations situated every few miles to ensure runners are well-supported.
The Half Marathon is a dedicated trail run featuring three major checkpoints: Junction 5 (twice) and Junction 7. These locations provide essential hydration points for the event's shorter distance competitors. The 5 Miler, designed as a quick loop through scenic trails, offers limited aid but does not include meal tickets unless purchased separately.
Running Y Resort is offering discounted accommodation with special rates available by using the code "Spence." This resort provides amenities such as a gym, pool, hot tubs, walking paths, and dining options for those looking to extend their stay in Klamath Falls.
Event maps are accessible via UltraSignup images and Strava links provided on the official site. The course layout has remained consistent over recent years, allowing runners familiar with past iterations to plan effectively.
With a rich history of hosting this trail running event since 2018, the Linkville Lopers continue to offer an experience that caters to all levels of endurance athletes—from casual joggers enjoying shorter distances to seasoned competitors tackling the full marathon and beyond. Register early to secure your spot on one of southern Oregon's most scenic trails.