Join an exciting two-day off-road event at Harmon Lake Recreation Area near Mandan on June 12-13, 2026, where you can test your skills in either a trail run or mountain bike race organized by 701 Cycle & Sport. The bike race features $4,200 in prize money distributed equally to male and female competitors, welcoming athletes of all levels from recreational runners to serious racers. After you finish, hang around to enjoy camping, food vendors, and family-friendly activities in this beautiful North Dakota outdoor setting.