Mine detail: Bronco Mine

Previously called 'ApexGolden NuggetMountain Girl'

<< Back to the map

Location

Lat / long: 44.25128, -114.95594

Resource(M)

Primary: Lead, Silver, Gold
Secondary: Copper
Tertiary: Zinc
Ore: Chalcopyrite, Chrysocolla, Malachite
Gangue: Limonite, Quartz
Orebody form: LINEAR, STRINGERS
Discovery year: 1895

Production

Operation type: Underground
Production size: Small
Development status: Past Producer

Geology

Host type:Quartz Monzonite
Associated rock:Idaho Batholith-Quartz Monzonite
Associated type:Quartz Monzonite
Structure:Idaho Batholith, Fault Zone, Brecciation
Alteration processes:Oxidation

References

MRDSW014154
MAS160370373
DEP10070988
Reference{Deposit:: CHOATE, RAOUL, 1962, GEOLOGY AND ORE DEPOSITS OF THE STANLEY AREA: IDAHO BUREAU OF MINES AND GEOLOGY PAMPHLET 126, 120 P.}{Deposit:: TSCHANZ, C. M., AND OTHERS, 1974, MINERAL RESOURCES OF THE EASTERN PART OF THE SAWTOOTH NATIONAL RECREATION AREA, CUSTER AND BLAINE COUNTIES, IDAHO: USGS OPEN - FILE REPT., 648 P.}{Deposit:: 1962 GEOLMAP IDAHO BUREAU OF MINES AND GEOLOGY PAMPHLET 126}{Deposit:: 1974 RECON TSCHANZ, C. M., AND OTHERS, OPEN - FILE REPT.}{Deposit:: VANNOY & OTHERS, 1986, USGS BULL.1545E, P.387, PL.3, NO.25}{Production:: TSCHANZ, C. M., AND OTHERS, 1974, USGS O. F. REPT., P. 484}
ReporterYett, Jay R.; Miller, Pat, McHugh, Edward L.