Mine detail: United States Exploration

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Location: Ontonagon County, Michigan, United States, North America
Lat / long: 46.68917, -89.29425
dep_id: 10310125
mrds_id: LW00125
Commodity type: metallic
Major mineral: Copper
Operation type: Underground
Deposit type: Fissure
Production size: Unknown
Development status: Prospect
orebody_fm: IRREGULAR
model: 96: Native Cu
Reporter: Anderson, Arlene (M. Gere)
hrock_unit: Portage Lake Volcanics
hrock_type: Basalt
Structure: Syncline
Year first produced: 1852
References:
  • JOHNSON, A.M. AND GROTH, E.H., 1998, INVENTORY OF UNDERGROUND MINES, ONTONAGON COUNTY, P. 242-243 SITE ID # 660087, MICHIGAN DEPARTMENT OF NATURAL RESOURCES.
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