The copper mining operations in the historic Mineral Park area near Kingman, Arizona, have produced substantial quantities of turquoise in prehistoric and modern times. The production amounts of Kingman’s blue colors along with Sleeping Beauty’s similar hues have made this color of turquoise the most common “look” of ay American turquoise. Discovered by James Haas in the late 1800s, this area became world famous for turquoise when Leonard W. Hardy marketed it during the 1950s, ’60s, and ’70s. The Duval Corporation’s open-pit mining operations originally leased the turquoise rights to L.W. Hardy. Since then, the Colbaugh family has controlled these claim rights for several generations. The Cerbat Mountains in Mohave County, at an elevation of about 3,300 feet, have two main areas of turquoise deposits, including Aztec Peak (Turquoise Mountain) and Ithaca Peak. Turquoise from this area has been marketed using the names Kingman, Ithaca Peak, and Turquoise Mountain.