Corps of Discovery Trail Races

The Corps of Discovery Trail Races, organized by the St. Louis Track Club, are held annually in the Weldon Spring Conservation Area. The event features multiple race options, including a half marathon, 8-mile, and 5-mile races, with the 2025 edition scheduled for August 30th.

The courses wind along scenic trails near the Missouri River, offering runners views of hardwood ridges and river bluffs. The races emphasize sustainability with a cup-free policy and provide amenities such as marked courses, volunteer support, and finisher medals. Participants can register early to secure T-shirts and medals, with race day logistics including parking, packet pickup, and safety measures. Visit the organization's website for the most recent information.