Mineral Resource Map
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Mine detail: Girard Exploration
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North America
United States
Michigan
Keweenaw
Previously called ''
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Location
Lat / long:
47.42944, -87.84586
Resource(M)
Primary:
Copper
Production
Operation type:
Underground
Deposit type:
Fissure Copper Veins
Production size:
Unknown
Development status:
Prospect
First production started:
1864
Last production ended:
1865
Geology
Host rock:
Portage Lake Volcanics
Host type:
Basalt
Structure:
Syncline
References
MRDS
LW00110
DEP
10310110
Reference
JOHNSON, A.M. AND GROTH, E.H., 1998, INVENTORY OF UNDERGROUND MINES, KEWEENAW COUNTY, P.129, SITE ID # 420034, MICHIGAN DEPARTMENT OF NATURAL RESOURCES.
Reporter
Anderson, Arlene (M. Gere)