Tamarack mine is a copper mine located in Osceola Township, Houghton County, north of Calumet, Michigan. The first shaft was started in 1882 and five shafts were eventually mined.[1] In 1966 seven-year-old Ruth Ann Miller fell into shaft #4 and a rescue was impossible.[2]
- ^ Stevens, Horace. "The Copper Handbook" 1900. Page 181--190 Google books
- ^ Keweenaw Free Guide