Days Past: How slabs of silver in old Sonora gave Arizona its name

Courtesy image<br>
This map, illustrating portions of southern Arizona and northern Sonora, shows the approximate location of the famous 1736 silver discovery called Planchas de Plata and a nearby rancheria named Arizona.

Courtesy image<br> This map, illustrating portions of southern Arizona and northern Sonora, shows the approximate location of the famous 1736 silver discovery called Planchas de Plata and a nearby rancheria named Arizona.

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