Itmann mine, located in Wyoming County, W Va, is operating in Pocahontas No. 3 seam, which averages 53 in. in thickness; immediate roof is shale from 2 to 15 ft in thickness; mine is shipping 12,000 tons daily; mining equipment consists of nine off-track conventional units and seven continuous mining units; shuttle cars transport 12,000 tons per day; mining system; extraction of pillars.
Shuttle cars from face to intermediate Haulage
Min Congress J
Mining Congress Journal ; 44 , n 1
1958
3 pages
Aufsatz (Zeitschrift)
Englisch
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