Boggy Draw Beat Down - Dolores, CO. Boggy Draw Trail System, San Juan Nat'l Forest. 1st Saturday in August. Mountain Bike Race w 4 different courses to choose from. 13-mile, 18-mile, 33-mile and 50-mile endurance. Visit http://doloresrace.com to register. USA Cycling Sanctioned. Chip Timed. Beer Garden, Emcee, vendors.