REMOVE

1. Caboose
2. Coal

WHAT

1. Operations (5)
2. Structures (5)
3. Coal Tower (4)

WHERE

1. East Ely (4)
2. Warm Springs (4)
3. Cherry Creek (3)
4. Cobre (3)
5. Currie (3)

WHO

1. Anderson, J.C. (1)
2. Armstrong, W.R. (4)
3. Beem, H.J. (1)
4. Bell, J.C. (1)
5. Boese, P.R. (1)
6. Cannon, L.G. (1)
7. Cordoni, A. (1)
8. Cordoni, A.V. (1)
9. Davidson, H.A. (1)
10. Evans, R.A. (1)
11. Fay, H.S. (1)
12. Fravel, H.A. (1)
13. Hickey, G.L. (1)
14. Lake, G.F. (2)
15. Mariani, J. (1)
16. Marino, A. (1)
17. Roper, F. (2)
18. Stark, A. (1)
19. Stork, A. (1)
20. Whitmore, J.P. (2)

WHEN

1. 1950s (2)
2. 1960s (2)
3. 1910s (1)
4. 1920s (1)