Hidden away in the Bighorns is a mysterious drawing carved on the surface of a massive granite boulder. Dubbed the “Boot Map, ...

Famous stories abound in Arizona regarding lost mines and treasure discovered by men who were hesitant to elaborate on their whereabouts. Since the 1540 Coronado Expedition involving Fray Marcos ...

A dusty envelope misplaced in a government archive has rewritten a chapter of mineral history. That 1949 letter, discovered ...