The Ned Ned Trail Fest celebrates over 40 years of trail running legacy in Nederland, Colorado, making it one of the state’s longest-running trail events. Organized by Peak to Peak Endurance, this September race offers three distinct distances that wind through Old Town Nederland and into the surrounding mountain terrain, combining dirt roads with technical single-track trails.

The signature half marathon covers 13.3 miles with 1,408 feet of elevation gain, featuring well-stocked aid stations at West Magnolia Trailhead (mile 5.8) and East Magnolia Trailhead (mile 9.5). Both stations provide SIS gels, Carbo Rocket electrolyte drinks, water, soda, and snacks. The 10k option offers 6.3 miles and 712 feet of climbing with one aid station, delivering the perfect balance of challenge and accessibility.

What sets this event apart is its genuinely family-friendly atmosphere. The 5k encourages costumes and welcomes leashed dogs, creating a festive community celebration rather than just another race. As part of the Colorado Mountain Half Marathon Series, the event attracts both serious mountain runners and casual participants looking for a memorable mountain experience.

The race operates as a cupless event, so bring your own hydration bottle or purchase a reusable Hydrapak cup. Wave starts begin at 8:00 AM for the half marathon, followed by the 10k at 9:00 AM and 5k at 9:30 AM. Post-race festivities feature live music, San Guchito Food Truck, and complimentary beer from Oskar Blues Brewery. The combination of challenging terrain, mountain views, and genuine community spirit makes this a standout event in Colorado’s crowded trail running calendar.