National Geographic : 1941 Dec
Working Dogs of the World 797 Neil T. Regan "Gee!" Cries the Musher, and This Fast-running Team Swings Right To start their dogs drivers usually shout "Yake," not "Mush." "Gee" means a right turn and "Haw" left. This team tearing along at about thirteen miles an hour at Sun Valley, Idaho, is driven by Miss Mary Joyce, young veteran of Alaska trails. Her seven-dog team is harnessed in the "gang hitch," with the dogs in pairs following a single leader and all attached to the "gang line." In the "fan hitch," often used in the Arctic, there is less danger of losing the whole team into a crevasse, since dogs are attached singly (page 799).