Which mine began operation first, Colomac Mine or Northland Pyrite Mine?
Colomac Mine:  The Colomac mine operated between 1990–1992, and 1994–1997. Northland Pyrite Mine: The Northland Pyrite Mine, also known as James Lake Mine, Rib Lake Mine, Harris Mine or simply Northland Mine, is an abandoned underground mine in Northeastern Ontario, Canada, located on the southwestern shore of James Lake in Best Township of Temagami. Northland Pyrite Mine:  It was operated by the Northland Mining Company during the early 1900s with the construction of a 91 m shaft and many open-cuts north of the shaft.
Northland Pyrite Mine