On April 2, 1909, seven cowmen attacked a sheep camp near Spring Creek in the southern Big Horn Basin. The raiders killed three men, kidnapped two others, killed sheep dogs and dozens of sheep and destroyed thousands of dollars of personal property. It was the deadliest sheep raid in Wyoming history. Unlike many previous incidents after which raiders went unpunished, however, prosecutors this time were successful and five raiders were jailed, marking the end of 15 years or more of violence between cattle- and sheepmen.
Wyoming’s sheep business never had the fame or cachet of Wyoming’s cattle business, but at the turn of the last century sheep raising was more widespread and probably more lucrative. Cattlemen, however, reacted violently to sheepmen’s entry onto the public range, and for a time deadly raids by cattlemen on flocks, sheepdogs and sheepherders were chronic. A gradual decline in wool and lamb prices since the 1920s has left only about a twentieth as many sheep on Wyoming ranges now as there were in 1909.