Commodities
PrimaryGold, Copper, Silver
Commodity typeM
Deposit
Model85: Polymetallic veins
Deposit sizeS
WorkingsUnderground
Materials
Ore mineralsChalcopyrite, Gold, Pyrite
Geology
Host rockSchist,Gneiss · Metasedimentary Schist;Granodiorite Gneiss
Associated rockDiabase,Hornblendite · Lamprophyre
StructureSangre De Cristo Range, Sierra Blanca Massif, Rio Grande Rift, Sangre De Cristo Fault, Independence Mine Fault
Tectonic settingCentral Cordillera (Southern Rocky Mtns)
AlterationUpper Portions Oxidized To Limonite And Copper Carbonates
Economic & production
Development statusPast Producer
Last production1937
Identification
Deposit ID10012939
MRDS IDD008966
Alternate namesBonanza, Independence Mill Site Alamosa, Baca Grant No. 4, Eastern Star, Independent, Midnight Star, Queen Estherr Claims
RegionNA
Data scoreB
Coordinates37.94584, -105.65002
References
COLORADO DIV. MINES MINE MANAGERS REPTS FOR 1900, 1902, 1904, 1905, 1906, 1912, 1913, 1915JOHNSON, R.B., 1969, GEOLOGIC MAP OF THE TRINIDAD QUADRANGLE, SOUTH-CENTRAL COLORADO: USGS 1-558CLEMENT, J.F., 1952, THE GEOLOGY OF THE NORTHEASTERN BACA GRANT AREA, SAGUACHE COUNTY, COLORADO: COLORADO SCHOOL OF MINES M.S. THESIS T-764Sunshine Mining Co. Colorado exploration files, unpublished data, Colorado Geological Survey.