Matches in DBpedia 2016-04 for { ?s ?p "Many copper mines have existed in the Copper Country of Michigan. These include both large-scale commercial ventures and small operations. There are hundreds of Ancient mining pits in and around the Copper Country area, especially on Isle Royale (several of these were developed). Numerous small modern diggings exist around the area as well, including some around Fort Wilkins and the Copper Harbor Light."@en }
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- List_of_Copper_Country_mines abstract "Many copper mines have existed in the Copper Country of Michigan. These include both large-scale commercial ventures and small operations. There are hundreds of Ancient mining pits in and around the Copper Country area, especially on Isle Royale (several of these were developed). Numerous small modern diggings exist around the area as well, including some around Fort Wilkins and the Copper Harbor Light.".
- Q6567808 abstract "Many copper mines have existed in the Copper Country of Michigan. These include both large-scale commercial ventures and small operations. There are hundreds of Ancient mining pits in and around the Copper Country area, especially on Isle Royale (several of these were developed). Numerous small modern diggings exist around the area as well, including some around Fort Wilkins and the Copper Harbor Light.".
- List_of_Copper_Country_mines comment "Many copper mines have existed in the Copper Country of Michigan. These include both large-scale commercial ventures and small operations. There are hundreds of Ancient mining pits in and around the Copper Country area, especially on Isle Royale (several of these were developed). Numerous small modern diggings exist around the area as well, including some around Fort Wilkins and the Copper Harbor Light.".
- Q6567808 comment "Many copper mines have existed in the Copper Country of Michigan. These include both large-scale commercial ventures and small operations. There are hundreds of Ancient mining pits in and around the Copper Country area, especially on Isle Royale (several of these were developed). Numerous small modern diggings exist around the area as well, including some around Fort Wilkins and the Copper Harbor Light.".