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No. 1 mine of Powhatan Mining Co, Ohio, works Pittsburgh No. 8 seam which is between 60 and 68 in. thick; total production is 5400 tpd; mining is by conventional room and pillar method; roof bolting, haulage, ventilation, power and drainage; coal preparation.
No. 1 mine of Powhatan Mining Co, Ohio, works Pittsburgh No. 8 seam which is between 60 and 68 in. thick; total production is 5400 tpd; mining is by conventional room and pillar method; roof bolting, haulage, ventilation, power and drainage; coal preparation.
Mining at Powhatan no. 1
Min Congress J
Sall, G.W. (author)
1955
6 pages
Article (Journal)
English
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