The Twig Mine is a lead and gold mine located in Greenlee county, Arizona at an elevation of 6,480 feet.
About the MRDS Data:
All mine locations were obtained from the USGS Mineral Resources Data System. The locations and other information in this database have not been verified for accuracy. It should be assumed that all mines are on private property.
Elevation: 6,480 Feet (1,975 Meters)
Primary Mineral: Lead, Gold
Lat, Long: 33.21167, -109.36389
Map: View on Google Maps
MRDS mine locations are often very general, and in some cases are incorrect. Some mine remains have been covered or removed by modern industrial activity or by development of things like housing. The satellite view offers a quick glimpse as to whether the MRDS location corresponds to visible mine remains.
Twig Mine MRDS details
Primary: Twig Mine
Secondary: Hogan Twigg Claim
District: Copper Mountain District
Owner Name: Hogan, J. A.
Years: 1948 -
Record Type: Site
Operation Category: Producer
Operation Type: Unknown
Year First Production: 1915
Year Last Production: 1948
Discovery Method: Ore-Mineral In Place
Years of Production:
Deposit Size: S
General Physiographic Area: Intermontane Plateaus
Physiographic Province: Basin And Range Province
Physiographic Section: Mexican Highland
Mineral Deposit Model
Description: Ne Trending Fault
Description: Block Faulting With 500-600 Ft Downthrow On West Side Of Twig Mine Deposits
Alteration Type: L
Alteration Text: Contact Alterration Of Precambrian Sediments To Metaquartzite Schist Host Rock
Age Type: Associated Rock Unit
Age Young: Paleocene
Age Type: Associated Rock
Age Young: Pliocene
Comment (Geology): PINAL SCHIST IS HEAVILY SHATTERED AND FOLDED; REGIONAL EXPOSURE OF PRECAMBRIAN SCHIST DUE TO EROSION OF TERTIARY VOLCANICS; BALLS OF GALENA WEIGH UP TO 500 LB.
Comment (Location): INFO FROM LAND.ST :01; 41? (1973)
Comment (Development): OPERATORS INCLUDED J.A. HOGAN, LEWIS A. SMITH, EDWARD FITZGERALD, BRYCE WILLIS; NO PRODUCTION RECORDS FROM 1927 TO 1947
Comment (Deposit): 3 PATENTED CLAIMS LISTED AS TWIG I, TWIG II, TWIG III
Comment (Workings): OPEN CUTS ARE 75 FT IN DIAMETER WITH 20 FT MAXIMUM DEPTH; ONE SHAFT WITH DEPTH OF 65 FT; ONE TUNNEL IS 125 FT BELOW SURFACE AND IS 120 FT LONG.
Reference (Other Database): CIMRI
Reference (Deposit): ARIZONA DEPARTMENT OF MINERAL RESOURCES FILE DATA.
Reference (Deposit): USGS PROFESSIONAL PAPER 43 (1905).
Reference (Deposit): MOOLICK, R.T., AND DUREK, J.J., 1966, THE MORENCI DISTRICT, IN GEOLOGY OF THE PORPHYRY COPPER DEPOSITS, EDITED BY TITLEY AND HICKS.
Reference (Deposit): ABGMT-USBM FILE DATA.
"Where to Find Gold in Arizona" looks at the density of modern placer mining claims along with historical gold mining locations and mining district descriptions to determine areas of high gold discovery potential in Arizona. Read more at Where to Find Gold in Arizona.