Colorado · Costilla County
Past Producer

Upper Star of the West Mine

Costilla County, Colorado, United States
IronGoldSilver
⌖ Show on mapUSGS source ↗
Commodities
PrimaryIron
TertiaryGold, Silver
Commodity typeM
Deposit
Deposit typeReplacement
Model62: Skarn Fe
Deposit sizeS
WorkingsUnderground
Orebody formTABULAR
Ore controlIgneous Intrusion
Materials
Ore mineralsHematite, Magnetite
Geology
Host rockLimestone · Minturn Formation
Associated rockMonzonite · Monzonite Porphyry
StructureSierra Blanca Massif, Ft. Garland Embayment, Vega Cr. Anticline, Wagon Mesa Fault
Tectonic settingCentral Cordillera (Southern Rocky Mtns.)
Economic & production
Development statusPast Producer
First production1881
Last production1883
Identification
Deposit ID10087417
MRDS IDD006730
Alternate namesIron Mine
RegionNA
Data scoreB
Coordinates37.61335, -105.26889
References
PATTON, H.B., AND OTHERS, 1910, GEOLOGY OF THE GRAYBACK MINING DISTRICT, COSTILLA COUNTY, COLORADO: CGS BULL. 2.WARNER, L.A., AND OTHERS, 1959, OCCURRENCES OF NONPEGMATITIC BERYLLIUM IN THE UNITED STATES: USGS PROF. PAPER 318, P. 165.HARRER, C.M., AND TESCH, W.J., JR., 1959, RECONNAISSANCE OF IRON OCCURRENCES IN COLORADO: USBM IC-7918, P. 22.