This timed 6-hour race takes place in Route 66 State Park located just east of Eureka, MO. The course is a measured 2.425-mile loop through the wooded northwest corner of Route 66 State Park. The course is a wide path consisting of thin pavement, chip n seal and some fine gravel. Although the loop is flat and fast, the temperature in July must be considered an overriding factor by each runner.