REMOVE

1. Mine
2. Liberty Pit
3. Ely
4. McGill
5. Smelter

WHAT

1. Crew (1)
2. Deep Ruth (1)
3. Haul Truck (1)
4. KCC (1)
5. Kennevadan (1)

WHERE

1. Cobre (1)
2. East Ely (1)
3. Ruth (1)

WHO

1. Butterman, L. (1)
2. Jackling, D.C. (1)
3. Kefauver, K.E. (1)
4. MacDonald, D.C. (1)
5. O'Shaughanessy, M.J. (1)

WHEN

1. 1960s (1)