Come test your resolve on over 35,778 ft of ascent all between 1000-6000 ft of elevation. Courses for everyone 15K, 25K, 35K, 50K, 50 Mile, 100K, 100 Mile Three Person Team Relay and 100 Mile Solo.
Thursday Practice Run Cancelled due to rain in the back country!
ThursdayMarch 24, 2011, Arroyo Burro Single Track practice run has been canceled due to rain and muddy trail conditions.