Mountain Guide Falls To Death While Guiding the 13,770โฒ Grand Teton, WY An Exum mountain guide fell to his death while guiding a group of clients down from a successful summit of the 13,770โฒ Grand Teton in Wyoming yesterday. Guide Gary Falk, 42, died after falling 2,400 feet from the top of the Owen-Spalding rappell into Valhalla Canyon at 10:30am on Saturday. Two park rangers were flown onto the peak to investigate [โฆ] CragBrains | July 24, 2016 4 Comments