Registration is now OPEN for Colossal Vail 50/50 on November 7th

Register today for the premier autumn trail running event on the Arizona Trail – the Colossal Vail 50/50 presented by Fleet Feet Sports-Tucson! Four event distances are offered: 50-Mile, 55K, Half-Marathon and new for 2020: the 11.6-mile Night Run. Registration is limited to only 250 runners so register here today.