Prepare for an exhilarating challenge at the Swiss Valley Trail Races, set for October 3, 2026, in scenic Peosta, IA. This event offers three demanding distances: a 5.2 Miler, a 25K, and a full 50K ultra, all winding through the picturesque Swiss Valley Nature Preserve. Runners will traverse a rugged course featuring the best of Dubuque County's landscape, including thrilling creek crossings, steep inclines, and technical terrain. Each challenging 5.2-mile loop boasts approximately 875 feet of climb, making it a true test for any trail runner. Typical race day conditions in early October offer pleasant highs around 66°F and lows around 45°F, with a modest 14% chance of precipitation, providing ideal running weather.

As a proud part of the No Coast Trail Series, the Swiss Valley Trail Races have built a reputation since their inception in 2015 for their beautiful yet demanding course. Strong hill runners will find themselves particularly at home on these 100% un-paved trails. Beyond the personal accomplishment, participation supports a great cause, as all proceeds benefit the Friends of Dubuque County Conservation, aiding local parks and environmental education initiatives. Runners consistently praise the event for its challenging nature and the stunning backdrop of the preserve.

Adding to the welcoming atmosphere, participants can take advantage of complimentary tent camping and showers at the nearby Swiss Valley Park and Campground. Free shuttles are also provided from the parking and camping areas to the start/finish line at the Swiss Valley Nature Center, ensuring a convenient race day experience. Come experience the rugged beauty and rewarding challenge of the Swiss Valley Trail Races.