Oliver mine of Oliver Coal Co, near Somerset in Gunnison County, Colo, was opened in 1927; modernization and mechanization work began in 1929; Sylvester seam is worked, average thickness 7 ft and average pitch 4.1%; general mining plan, showing advance work and pillar extraction; operating details; normal blasting is with Cardox; electric power; ventilation; rock dusting.
Shuttle cars latest step in Oliver modernization
Coal Age
Coal Age ; 48 , n 6
1943
4 pages
Article (Journal)
English
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