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Calumet and Hecla Mills and Reclamation Plant - Ahmeek Mill Gravity Flow Sheet |
Metal Trade, Copper Industry and Trade, Copper Mines and Mining, Engineering, |
Ahmeek Mill - Gravity Flow Sheet [A line drawing which diagrams the process, equipment and flow of rock through the Ahmeek Mill.] Scanned: January 11, 2006 |
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Calumet and Hecla Mills and Reclamation Plant - Calumet Conglomerate Flow Sheet |
Metal Trade, Copper Industry and Trade, Copper Mines and Mining, Engineering, |
Calumet Conglomerate Flow Sheet [A line drawing which diagrams the process, equipment and flow of rock through the Calumet mill and reclamation plant in Lake Linden.] Scanned: January 11, 2006 |
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Calumet and Hecla Mills and Reclamation Plant - Flotation Flow Sheet of Calumet and Hecla Conglomerate |
Metal Trade, Copper Industry and Trade, Copper Mines and Mining, Engineering, |
Flotation Flow Sheet of Calumet and Hecla Conglomerate [A line drawing which diagrams the process, equipment and flow of rock through the Calumet mill and reclamation plant in Lake Linden.] Scanned: January 13, 2006 |
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Calumet and Hecla Mills and Reclamation Plant - Gravity Flow Sheet of Calumet and Hecla Reclamation Plant |
Metal Trade, Copper Industry and Trade, Copper Mines and Mining, Engineering, |
Gravity Flow Sheet of Calumet and Hecla Reclamation Plant [A line drawing which diagrams the process, equipment and flow of rock through the Calumet mill and reclamation plant in Lake Linden.] Scanned: January 13, 2006 |
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Calumet and Hecla Mills and Reclamation Plant - Sands Model |
Metal Trade, Copper Industry and Trade, Copper Mines and Mining, Engineering, |
Reclamation Sands [An interior of an office space showing a large model made of dowels inserted vertically into pegboard. The dowels are painted dark and light colors.] Scanned: July 3, 2006 |
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Calumet & Hecla Stamp Mill |
Engineering, Natural Resources, Mines and Mineral Resources, Copper Mines and Mining, Metal Trade, Copper Industry and Trade |
Calumet & Hecla Stamp Mills. Hecla Mill, Wash Room. Scanned: September 10, 2014 |
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Calumet & Hecla Stamp Mill |
Engineering, Natural Resources, Mines and Mineral Resources, Copper Mines and Mining, Metal Trade, Copper Industry and Trade |
Calumet & Hecla Stamp Mills, sand leaching plant. Scanned: September 10, 2014 |
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Calumet & Hecla Stamp Mill |
Engineering, Natural Resources, Mines and Mineral Resources, Copper Mines and Mining, Metal Trade, Copper Industry and Trade |
View of part of the Calumet & Hecla Stamps from Torch Lake, Hecla Sand Wheel House, W.W. Boiler House, Water Works, Hecla Mill, Co's Dock and Steamboat L'd'g. Scanned: September 10, 2014 |
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Blueprint showing depths of shafts, Quincy Mining Company |
Metal Trade, Copper Industry and Trade, Copper Mines and Mining, Engineering, Surveying, |
Bottom of Shaft [Blueprint chart showing depth of major shafts of the Quincy Mining Company from 1901-1912. Note indicates "stope distances from surface at No. 2 shaft." Includes No. 2, No. 6, No. 7, No. 8, and No. 9 shafts.] Scanned: March 20, 2008 |
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Blueprint showing cross section No. 2 shaft, Quincy Mining Company |
Metal Trade, Copper Industry and Trade, Copper Mines and Mining, Engineering, Surveying, |
Cross Section three, No. 2 Shaft [Blueprint map showing side view cross section of the No. 2 shaft of the Quincy Mining Company. Information from Quincy card index indicates the map was originally drawn April 25, 1914, but map was later updated to show increasing depth of the shaft. This version, dated June 16, 1921, shows the shaft going off the edge of the map below the 82 level. Surface features such as the No. 2 shafthouse, Limerick and Hardscrabble locations, and the Quincy powder house, are shown for scale. Also shown are the underground locations of the Allouez conglomerate ore body and the main, east, west and far west portions of the Pewabic ore body.] Scanned: March 20, 2008 |