Tags: Cycling Race, Race.
The Lumberjack 100 is an ultra-endurance mountain bike race held the 3rd Saturday in June at Michigan’s Big M Cross Country Ski and Mountain Bike Trail in the Manistee National Forest. The race is a 100 mile mountain bike marathon and is part of the National Ultra Endurance Series. The race course consists of three 33.33 mile laps in the Udell Hills area and crosses the North Country National Scenic Trail twice per lap. The course contains over 8000 feet of climbing and is 80% singletrack.