Colorado · Saguache County
Occurrence

Old Ironsides Mine

Saguache County, Colorado, United States
Iron
⌖ Show on mapUSGS source ↗
Commodities
PrimaryIron
Commodity typeM
Deposit
Deposit typeReplacement
Deposit sizeN
Materials
Ore mineralsLimonite
Geology
Host rockLimestone · Minturn Formation;Belden Formation
StructureSawatch Arch, Sangre De Cristo Range, Rio Grande Rift, Cotton Creek Anticline, Gibson Peak Syncline
Tectonic settingCentral Cordillera (Southern Rocky Mtns)
Economic & production
Development statusOccurrence
Identification
Deposit ID10013992
MRDS IDD010581
RegionNA
Data scoreC
Coordinates38.17918, -105.7478
References
HARRER, C.M., AND TESCH, W.J., JR., 1959, RECONNAISSANCE OF IRON OC CURRENCES IN COLORADO: USBM IC-7918, P. 59-67.SCOTT, G.R., AND TAYLOR, R.B., 1974, RECONNAISSANCE GEOLOGIC MAP OF THE ELECTRIC PEAK QUADRANGLE, CUSTER AND SAGUACHE COUNTIES, COLORADO: USGS MAP MF-628