Commodities
PrimaryCopper
Commodity typeM
Deposit
Model96: Native Cu
Deposit sizeS
Geology
Host rockBasalt · Portage Lake Volcanics
StructureFissure below Greenstone flow
Economic & production
Development statusPast Producer
First production1851
Last production1887
Identification
Deposit ID10082628
MRDS IDW060066
RegionNA
Data scoreB
Coordinates47.45833, -87.8667
References
BUTLER, B.S., AND BURBANK, W.S., 1929, THE COPPER DEPOSITS OF MICHIGAN: USGS PROF. PAPER NO. 144, 238 PP.CORNWALL, H.R., 1955, BEDROCK GEOLOGY OF THE FORT WILKINS QUADRANGLE, MICHIGAN: USGS MAP GQ-74, SCALE 1:24000BULTER AND BURBANK (1929)