Commodities
PrimaryCopper
Commodity typeM
Deposit
Model96: Native Cu
Deposit sizeS
Orebody formFISSURE
Geology
Host rockBasalt · Portage Lake Volcanics
StructureFissures in amygdaloidal basalt
Economic & production
Development statusPast Producer
First production1875
Last production1879
Identification
Deposit ID10082643
MRDS IDW060081
RegionNA
Data scoreB
Coordinates48.06667, -88.58338
References
LANE, A.C., 1898, UPPER PENINSULA, ISLE ROYALE: GEOLOGICAL SURVEY OF MICHIGAN, V. 6, PT.1, 281 PP.HUBER, N.K., 1973, GEOLOGIC MAP OF ISLE ROYALE NATIONAL PARK, KEWEENAW COUNTY, MICHIGAN: USGS MISC. GEOL. INVEST., MAP I-796, SCALE 1:62500LANE, 1898