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Sinking no. 3 shaft at Westvaco Trona mine, Intermountain Chemical Co., Sweetwater County, Wyo.

Published Year

• 1950-1959 (1) *

Subject

• Coal mines and mining--Wyoming (1)
• Shaft sinking--Wyoming (1) *

Author

• Berry, T. (1)
• Romano, C. A. (1)
• Wideman, F. L. (1)

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