These races started in 1960 when the San Francisco Chronicle and the Phoenix Sun challenged each other to a race. The winner was Hollywood director John Huston, who was filming “The Misfits” nearby. Two stars of the film, Marilyn Monroe and Clark Gable, were among the spectators as camels ran a 100-yard dash through the middle of this Comstock Lode town. – Wall Street Journal
(I suspect that this event may not have been quite so enjoyable for Marilyn, who like her character, Roslyn, was acutely sensitive to the welfare of animals.)