Susan Butcher, who won the grueling Iditarod Trail Sled Dog Race four times, died over the weekend. She had leukemia and suffered complications after a bone marrow transplant.
Butcher was raised in Massachusetts and, at 20, moved to Alaska with a friend and some dogs to live off the land, in a log cabin 40 miles from the nearest neighbor.
She won her first Iditarod in 1986 and her last in 1990. No woman has won it since.
Libby Riddles, the first woman to win the Alaska competition, remembers the 51-year-old Butcher as a fierce competitor who was strongly devoted to her dogs.