O'brien Trail Races

The O'Brien Trail Races take place at William O'Brien State Park in Marine on Saint Croix, Minnesota. The event offers multiple distances including a challenging 50K (two 25K loops), a 25K, a 10K, and a 5K, catering to a range of trail runners from beginners to experienced athletes. The courses feature scenic trails with varied terrain, including grass paths and hills, with aid stations providing refreshments on longer routes.

The atmosphere is family-friendly and welcoming, encouraging new trail runners to participate. Amenities include post-race food, on-site bathrooms, and race-day packet pickup. The event emphasizes respect for fellow runners and the natural environment. Visit the organization's website for the most recent information.