Commodities
PrimaryCopper
Commodity typeM
Deposit
Deposit typeFissure Copper Veins
Model96: Native Cu
Deposit sizeU
Orebody formIRREGULAR
Geology
Host rockBasalt · Portage Lake Volcanics
StructureSyncline
Economic & production
Development statusPast Producer
First production1865
Identification
Deposit ID10310113
MRDS IDLW00113
Alternate namesBluff Mine
RegionNA
Data scoreC
Coordinates47.42972, -87.96586
References
JOHNSON, A.M. AND GROTH, E.H., 1998, INVENTORY OF UNDERGROUND MINES, KEWEENAW COUNTY, P. 29-30, SITE ID # 420011, MICHIGAN DEPARTMENT OF NATURAL RESOURCES.