Basic estimated capital investment and operating costs for underground bituminous coal mines developed for longwall mining :
mines with annual production 1.3 and 2.6 million tons by longwall mining from a 48-inch coalbed /
by John R. Duda and E.L. Hemingway : Process Evaluation Group-MMRD.

Description

Main Author

Duda, John R.

Related Names

Hemingway, E. L., joint author.
United States. Bureau of Mines.

Language(s)

English

Published

Washington : U.S. Dept. of the Interior, Bureau of Mines : 1976.

Subjects

Coal mines and mining > Coal mines and mining / United States > Coal mines and mining / United States / Cost of operation.
Bituminous coal > Bituminous coal / Costs.

Note

S/N 024-004-01890-9.
Item 637-A.

Physical Description

[3], 23 p. : ill. ; 26 cm.

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