A new approach to shaft development work
págs. 18-21
A test of valor
Donna Schmidt
págs. 23-25
2015 U.S. prep plant census
Steve Fiscor
págs. 26-33
A different perspective
Emily J. Haas, Joseph Ducarme
págs. 34-35
Third quarter fatality overview
págs. 36-37
Innovative rock-dusting system to assist with respirable dust compliance
págs. 38-39
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