Corps of Discovery Trail Races

The Watershed Endurance Runs, held at the Watershed Nature Center in Edwardsville, Illinois, feature timed 3-hour and 6-hour running events on a 1.01-mile loop course. The route combines 50% crushed limestone and 50% pavement, with direction alternating yearly. Participants can run, jog, or walk, ai..

The Labor Day Slay is a multi-distance running event held at Queeny Park in St. Louis, Missouri. Scheduled for August 30, 2025, it features a 5K, 10K, Half Marathon, and a 10K Ruck with 20 or 40-pound rucksacks.Participants run, walk, jog, or ruck on shaded, rolling trails starting from the Smith Pa..

The Rockin' Rockwoods 53K and 1/2 Marathon is an annual trail running event held at Greensfelder County Park in Wildwood, Missouri. Featuring a challenging course on the scenic Green Rock Trail, the race includes a 53K ultra, a 1/2 marathon, and a 1/2 marathon ruck division where participants carry..

The DeClue Loops Trail Race is a premier trail running event held in Greensfelder Park, Wildwood, Missouri. The race features a scenic 8.2-mile loop on the DeClue Trail, starting and finishing near the park's Visitor Center. Participants can choose from multiple distances: 8 miles (1 loop), 16 miles..

The Minnie Ha Ha 6 & 12 Hour Run is an annual timed ultrarunning event held at Minnie Ha Ha Park in St. Louis, Missouri. The race features 6- and 12-hour options on a USATF-certified, 1.17-mile paved loop course that winds through a mostly flat, wooded park with scenic views of the Meramec River and..

The Babler Bongo 15K Trail Race and 15K RUCK take place at Dr. Edmund A. Babler Memorial State Park in Wildwood, Missouri.This event features a challenging 15K loop course connecting several trails—Dogwood, Woodbine, Hawthorn, and Equestrian—with about 1,350 feet of elevation gain. It welcomes both..