Commodities
PrimaryCopper
Commodity typeM
Deposit
Model96: Native Cu
Deposit sizeS
Orebody formFISSURE
Geology
Host rockBasalt · Portage Lake Volcanics
StructureFissures cross-cutting basalt
Economic & production
Development statusPast Producer
Production years1846-1848 AT LEAST (BUT PROBABLY NOT MUCH LONGER)
First production1846
Last production1848
Identification
Deposit ID10082647
MRDS IDW060085
RegionNA
Data scoreC
Coordinates47.98333, -88.76673
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 1:62500