 Through 1949, the company had recovered 535 million pounds (243,000 metric tons) of copper by reprocessing tailings.One of the dredges used, Calumet and Hecla Dredge Number One, is currently sunk in shallow water in Torch Lake.By 1902, Calumet and Hecla had 5,000 employees, and the towns of Calumet (then named Red Jacket), Laurium, and Lake Linden were virtual company towns.