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Mine detail: Gertrude Mine
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North America
United States
Michigan
Marquette
Previously called 'Gertie Mine'
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Location
Lat / long:
46.51222, -87.90392
Resource(M)
Primary:
Iron
Ore:
Hematite
Orebody form:
STRATABOUND
Production
Operation type:
Underground
Deposit type:
Bedded, Chemical Sediment
Production size:
Unknown
Development status:
Past Producer
Geology
Host rock:
Negaunee Iron-Formation
Host type:
Iron Formation
Structure:
Regional trends are from east to west
References
MRDS
LW00182
DEP
10310182
Reference
JOHNSON, A.M. AND GROTH, E.H., 1998, INVENTORY OF UNDERGROUND MINES, MARQUETTE COUNTY, P. 175-176, SITE ID 520071, MICHIGAN DEPARTMENT OF NATURAL RESOURCES.
Reporter
Anderson, Arlene (M. Gere)