Mine Tales: Claim date gave Arizona's Christmas Mine its name. Dennis O’Brien and William Tweed located the Christmas Mine about 1880 and sold their claims to Phelps Dodge shortly thereafter.

Geology of the Christmas Copper Mine, Gila County, Arizona. Arizona Bureau of Mines Geological Survey Bulletin 10-27-H. U.S. Government Printing Office, Washington, 1956.

MAMMOTH, Ariz.—When Hector Denogean Sr. got his first paycheck from his new job at the Christmas copper mine in 1979, he felt like the richest 18-year-old this side of the Galiuro Mountains. His ...