Route 66 State Park, located just east of Eureka, MO, features flat, fast trails through shaded woodlands and lies along the scenic Meramec River. With 3- and 6-hour race options available, it’s ideal for both newcomers to timed races and seasoned ultrarunners alike.

The course is a measured 2.425-mile loop that winds through the wooded northwest corner of Route 66 State Park. It follows a wide path consisting of thin pavement, chip-n-seal, and fine gravel, offering a flat and fast surface perfect for setting a personal best. However, runners should keep in mind that July temperatures can present a serious challenge, making smart pacing and hydration essential.