Desert bighorn sheep establish two desert areas in southwestern Arizona to help preserve the desert bighorn sheep: Cabeza Prieta National Wildlife Refuge and the Kofa National Wildlife Refuge. In 1941, the San Andres National Wildlife Refuge in New Mexico was added. Desert bighorn sheep populations have trended upward since the 1960s when their population was estimated at 6,700-8,100. The upward trend was caused by conservation measures, including habitat preservation. In 1980, desert bighorn sheep populations were estimated at 8,415-9,040. A state-by-state survey was conducted a few years later and estimated the overall US desert bighorn sheep population at 15,980. The 1993 estimate of
The Painted Desert replace it with another load. He is successful. However, as he is celebrating the success of the mine, as well as his impending nuptials with Mary Ellen, the mine is sabotaged by a series of explosions. Everyone believes the mine sabotage is the work of Cash, but it turns out to have been an act of jealousy on the part of Rance, who confesses, leaving the two old friends to reconcile, and their two children to marry. "The Painted Desert" was put on the slate by Pathé Exchange in June 1930. In July it was announced that E.B. Derr had