Mine: Calumet & Hecla Mine, Calumet, MI

Various → Calumet & Hecla Mine → Closed

From: 1864

Owned by: Calumet & Hecla Mining Company in 1871, then Universal Ol Products in 1968.

Produced: Copper Ore

Method: Underground shaft mining.

Railroad connection: C&H Railroad

Stamp Mill/Smelter: 

Until: 1868 (strike). Mine dewatering pumps turn off in 1970.

Lifetime Production: 

From 1869 to 1886 it was the leading copper ore producer in the United States. By 1881 the mines had 16 shafts. By 1897 the Red Jacket shaft rached a vertical depth of 4,900 feet, the deapest in the world at the time. [Wiki]