By Dave Lewis
1857: The land that would become Arizona was still part of New Mexico Territory, but the name “Arizona” was gaining popularity among citizens around Tucson. Tucson, Tubac, and Yuma were the only non-native settlements in Arizona and knowledge of the region was growing slowly. Spaniards had been here since the 1500s. Mountain men and prospectors had crossed Arizona; Army expeditions had traversed Arizona along the Gila River and along the Mormon Trail south of the Gila. Lorenzo Sitgreaves, Amiel Whipple, and Edward Beale had surveyed possible wagon and railroad routes. There was even regular river boat activity on the lower Colorado, between Yuma to the Sea of Cortez.
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