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Shaft sinking at the Sevier Valley Coal Co. mine

Method of mining a thick coal bed in eastern Utah

Falls of roof and coal in the Book Cliffs and Wasatch Plateau Coal Fields in Utah

A study of falls of roof and coal in mines of Lincoln County, Wyoming

A study of falls of roof and coal in Northern Colorado

A study of falls of roof and coal, Rock Springs Coal District, Sweetwater County, Wyo.

Published Year

• 1930-1939 (6) *

Subject

• Mine timbering (4)
• Coal mines and mining--Utah (2)
• Mine roof control (2)
• Coal mines and mining (1)
• Coal mines and mining--Wyoming (1)
• Mine accidents--Colorado (1)
• Mine accidents--Wyoming (1)
• Shaft sinking--Costs (1)
• Shaft sinking--Technique (1)

Author

• Tomlinson, Herbert. (6) *

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