Commodities
PrimaryZinc, Lead, Iron
Commodity typeM
Materials
Ore mineralsGalena, Limonite, Sphalerite
Geology
Host rockDolomite · Decorah Formation
Economic & production
Development statusPast Producer
Identification
Deposit ID10082025
MRDS IDW044524
RegionNA
Data scoreC
Coordinates42.5514, -90.76901
References
F1 < HEYL, A. V., AGNEW, A. F., LYONS, E. J., AND BEHRE, C. H., JR., 1959, THE GEOLOGY OF THE UPPER MISSISSIPPI VALLEY ZINC-LEAD DISTRICT: U.S. GEOLOGICAL SURVEY PROFESSIONAL PAPER 309, 310 P.F2 < FLINT, A. E., AND BROWN, C. E., 1955, GEOLOGY AND ZINC-LEAD DEPOSITS IN THE DURANGO AREA, DUBUQUE COUNTY, IOWA: U.S. GEOLOGICAL SURVEY MINERAL INVESTIGATIONS FIELD STUDIES MAP MF 33, 1:12,000.