success, but ranching continued on a smaller scale. Arizona's last major drought occurred during Dust Bowl years of 1933–34. This time Washington stepped in as the Agricultural Adjustment Administration spent $100 million to buy up the starving cattle. The Taylor Grazing Act placed federal and state agencies in control of livestock numbers on public lands. Most of the land in Arizona is owned by the federal government which leased grazing land to ranchers at low cost. Ranchers invested heavily in blooded stock and equipment. James Wilson states that after 1950, higher fees and restrictions in the name of land conservation caused a sizable reduction in available grazing land. The ranchers had installed three-fifths of the fences, dikes, diversion dams, cattleguards, and other improvements, but the new rules reduced the value of that investment. In the end, Wilson believes, sportsmen and environmentalists maintained a political advantage by denouncing the ranchers as political corrupted land-grabbers who exploited the publicly owned natural resources. Copper On February 23, 1883 United Verde Copper Company was incorporated under New York law. The small mining camp next to the mine was given a proper name, 'Jerome.' The town was named after the family which had invested a large amount of capital. In 1885 Lewis Williams opened a copper smelter in Bisbee and the copper boom began, as the nation turned to copper wires for electricity. The arrival of railroads in the 1880s made mining even more profitable, and national corporations bought control of the mines and invested in new equipment. Mining operations flourished in numerous boom towns, such as Bisbee, Jerome, Douglas, Ajo and Miami. Wild West Arizona's "wild west" reputation was well deserved. Tombstone was a notorious mining town that flourished longer than most, from 1877 to 1929. Silver was discovered in 1877, and by 1881 the town had a population of over 10,000. Western story tellers and Hollywood film makers made as much money in Tombstone as anyone, thanks to the arrival of Wyatt Earp and his brothers in 1879. They bought shares in the Vizina mine, water rights, and gambling concessions, but Virgil, Morgan and Wyatt were soon appointed as federal and local marshals. They killed three outlaws in the Gunfight at the O.K. Corral, the most famous gunfight of the Old West. In the aftermath, Virgil Earp was maimed in an ambush and Morgan Earp was assassinated while playing billiards. Walter Noble Burns's