Lace up for an unforgettable adventure at the Knickerbocker Canyon Trail Run on March 28, 2026, in scenic Auburn, CA. Starting and finishing at the American River Canyon Overlook Park, this race offers a challenge for every trail enthusiast with distances including a 35K, Half Marathon, 10K, and 5K. Prepare to traverse moderately technical dirt trails and fire roads, featuring breathtaking scenery along the historic Western States Trail.

The courses are renowned for their dynamic terrain; the 5K and 10K boast "killer single-track trails" winding along the American River's banks, while the Half Marathon and 35K distances push runners across the iconic "No Hands Bridge" and up the formidable "K2 training hill," with the longest distance also tackling the "Dam Hill." Runners can expect significant elevation gains, ranging from approximately 650 feet for the 5K to a demanding 4,800 feet for the 35K. Inside Trail Racing ensures a well-supported experience, providing aid stations stocked with a variety of energy gels, hydration mixes, fruits, and snacks like PB&J sandwiches and Oreos to keep you fueled. Typical race day conditions often present ideal running weather, with highs around 60F and lows around 40F, and a relatively low chance of precipitation.

Runners consistently praise the Knickerbocker Canyon Trail Run for its challenging yet rewarding courses and vibrant atmosphere, often describing it as "Tough, but Beautiful!" With a diverse course that promises to be "varied and far from monotonous," this event offers an engaging experience for all, from those seeking a swift 5K to ultra-aspirants tackling the 35K. Dogs are even welcome to join in the fun, provided they start at the back of the pack. This race truly captures the spirit of trail running in California's "Endurance Capital."