Location: | Keweenaw County, Michigan, United States, North America |
Lat / long: | 47.42944, -87.84586 |
dep_id: | 10310110 |
mrds_id: | LW00110 |
Commodity type: | metallic |
Major mineral: | Copper |
Operation type: | Underground |
Deposit type: | Fissure Copper Veins |
Production size: | Unknown |
Development status: | Prospect |
model: | 96: Native Cu |
Reporter: | Anderson, Arlene (M. Gere) |
hrock_unit: | Portage Lake Volcanics |
hrock_type: | Basalt |
Structure: | Syncline |
Year first produced: | 1864 |
yr_lst_prd: | 1865 |
References: |
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