Search U.S. government technical reports digitized or harvested by TRAIL.

Keyword Search

Geologic factors causing roof instability and methane emission problems :the Lower Kittanning coalbed, Cambria County, Pa.

Published Year

• 1970-1979 (1)

Subject

• Coal mines and mining--Pennsylvania--Cambria County (1)
• Firedamp (1) *
• Mine roof control (1)

Author

• Deul, Maurice. (1)
• McCulloch, C. M. (1) *

• About TRAIL
• FAQ
• Join TRAIL
• Contact Us

Search developed and maintained by the University of Washington Libraries
Copyright 2010