Douglas-area mountain held several mines - Arizona Daily Star
Sources • ADMMR (Arizona Dept of Mines & Mineral Resources File Data) Chance Mine File dated 06/06/97. • Arizona Zinc and Lead Deposits Part II. Arizona Bureau of Mines, Geological Series Bulletin 158, Tucson: University of Arizona Press, 1951. •... University of Arizona Thesis, 1947. • Walter E. Heinrichs, Jr. Mining Collection provided online by Arizona Geological Survey comprised of ephemera encompassing multiple dates. The geology of the Chance Mine, located in the northeastern portion of the Swisshelm Mountains about 30 miles north of Douglas, consists of a hydrothermal deposit, limestone formation with andesite intrusive, granite and alluvial deposits. Named for John Swisshelm, who surveyed the Swisshelm district in the latter 19th century, the mountains — notably Swisshelm Peak at 7,183 feet — served as a heliograph station for Gen. Nelson Miles during his campaign against the Apaches in 1886. Several prominent mines in the locality include the Mountain Queen and the Chance, discovered in 1885 by John Scribner, a Tombstone prospector. The Colford Copper Co. attempted to mill vanadium ore on-site while shipping limited quantities of lead-silver ore. Source: tucson.com
