Commodities
PrimaryCopper
Commodity typeM
Deposit
Model96: Native Cu
Deposit sizeS
Geology
Host rockBasalt · Portage Lake Volcanics
StructureAshbed amygdaloid
Economic & production
Development statusPast Producer
First production1845
Last production1850
Identification
Deposit ID10082631
MRDS IDW060069
RegionNA
Data scoreC
Coordinates47.43472, -88.19726
References
BUTLER, B.S., AND BURBANK, W.S., 1929, THE COPPER DEPOSITS OF MICHIGAN: USGS PROF. PAPER NO. 144, 238 PPCORNWALL, H.R., AND WRIGHT, J.C., 1954, BEDROCK GEOLOGY OF THE EAGLE HARBOR QUADRANGLE, MICHIGAN; USGS MAP GQ-36, SCALE 1: 24000BUTLER AND BURBANK, 1929; CORNWALL AND WRIGHT, 1954