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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 - Dredge |
Metal Trade, Copper Industry and Trade, Copper Mines and Mining, Ships, |
Dredge - Digging Ladder - Horizontal [An exterior photo of a sand dredge on Torch Lake. Digging arm is elevated and suction head is visible, showing jets of water used to dislodge stamp sands.] Scanned: January 11, 2006 |
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Calumet and Hecla Mills and Reclamation Plant - Dredge |
Metal Trade, Copper Industry and Trade, Copper Mines and Mining, Ships, |
Dredge - In Operation - Side View [An exterior photo of a sand dredge on Torch Lake. Digging arm is submerged.] Scanned: January 11, 2006 |
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Calumet and Hecla Mills and Reclamation Plant - Dredge |
Metal Trade, Copper Industry and Trade, Copper Mines and Mining, Ships, |
Dredge - In Operation - End View [An exterior photo of a sand dredge on Torch Lake. Digging arm is submerged. Calumet mill is in background with black smoke billowing from chimney.] Scanned: January 11, 2006 |
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Calumet and Hecla Mills and Reclamation Plant - Dredge |
Metal Trade, Copper Industry and Trade, Copper Mines and Mining, Ships, |
Dredge - Showing water jets [An exterior photo of a sand dredge on Torch Lake. Digging arm is submerged and jets of water are shooting out from the sides of the dredge. Calumet coal dock is in background.] Scanned: July 3, 2006 |
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Calumet and Hecla Mills and Reclamation Plant |
Metal Trade, Copper Industry and Trade, Copper Mines and Mining, Buildings, |
Dredge - 20" Pump Scanned: December 3, 2009 |
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Calumet and Hecla Mills and Reclamation Plant |
Metal Trade, Copper Industry and Trade, Copper Mines and Mining, Buildings, Manpower, Labor |
Dredge - Switchboard Scanned: December 3, 2009 |
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Calumet and Hecla Mills and Reclamation Plant - Pontoon Line |
Metal Trade, Copper Industry and Trade, Copper Mines and Mining, Ships, |
Pontoon Line [An exterior photo from a sand dredge on Torch Lake showing line of floating pontoons that carry electrical wiring to the dredge and piping to carry stamp sand slurry back to shore plant. A small tugboat named Hecla is shown moored to the pontoon line with two men visible on board.] Scanned: January 11, 2006 |
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Calumet and Hecla Mills and Reclamation Plant - Shore Plant |
Metal Trade, Copper Industry and Trade, Copper Mines and Mining, , |
Shore Plant - Swinging Bridge [An exterior photo showing equipment at the shore end of the pontoon line from the dredge. Water is shown gushing from the piping on the pontoon line into the rubbish screen. There is a building shown in the background with a moveable bridge on a half circle track. Houses are visible on the hillside behind the building.] Scanned: January 11, 2006 |