Ultramarathons in Gunnison

Saturday, October 3 · Gunnison, Colorado

The Sage Burner Trail Race 50K takes place in early October at Hartman Rocks Recreation Area near Gunnison, Colorado. This 31-mile course winds through high desert terrain covered in sagebrush, mixing technical slickrock sections with smooth singletrack and faster doubletrack segments. Don't let the varied terrain fool you—this course delivers a steady challenge through rolling hills and punchy climbs at altitude. The high desert climate adds another layer of difficulty, especially as October weather can be unpredictable in this part of Colorado. Runners will enjoy expansive 360-degree views of surrounding mountain ranges including the San Juans, though the exposed nature of much of the course means limited shade and potential wind exposure. This race suits runners who enjoy technical variety and don't mind grinding through sustained climbs in thin air. The combination of altitude, desert conditions, and deceptively tough terrain makes it more challenging than the smooth sections might suggest. Runners seeking a straightforward fast course might find the technical elements and elevation more demanding than expected.