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Analysis of the coal industry in Boulder-Weld County coalfield, Colorado

Recovery percentage of bituminous coal deposits in the United States (in two parts).

Published Year

• 1960-1969 (2) *

Subject

• Bituminous coal--United States (1)
• Coal mines and mining--Colorado--Boulder County (1)
• Coal mines and mining--Colorado--Weld County (1)
• Coal trade--Colorado (1)

Author

• Lowrie, Raymond L. (2) *

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