“Line out” refers both to a voice command given to the lead dogs and to the physical act of keeping the team stretched forward in a straight line with the gangline taut. When a musher calls “line out,” the lead dogs are expected to walk or lean forward, pulling the gangline tight and holding the rest of the team in position.
This is essential during stops on the trail or at the start line of a race, when the musher needs the team to stay organized while they set or pull the snow hook, adjust gear in the sled bag, or tend to a dog. A tangled or slack gangline can quickly lead to chaos, with dogs stepping over lines, getting twisted, or turning around.
A well-trained lead dog that reliably lines out on command is invaluable in sled dog racing. In competitive settings, handlers or volunteers may physically hold the leaders forward at the start chute, but out on the trail the musher relies entirely on the lead dog’s training and discipline to maintain a clean line out.