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Results 121 - 123 of 123
A videotaped interview with Dave about the experience of recovering the body of a friend who was killed by a roof fall while under unsupported top.
A videotaped interview with a miner helper who witnessed a roof fall that convered the continuous mining machine. An instructor's guide is included to help you use this video as part of an effective training session.
Geologic Factors Causing Roof Instability and Methane Emission Problems: The Lower Kittanning Coalbed, Cambria County, Pa1/1/1973 - Reports of InvestigationsA geologic study of Mines 32 and 33 in Cambria County, Pennsylvania, was conducted as part of a methane control research program.