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Methods and costs of mining ferberite ore at Cold Springs Mine, Nederland, Boulder County, Colo.

Methods and costs of milling ferberite ore at the Wolf Tongue Concentrator, Nederland, Boulder County, Colo.

Published Year

• 1930-1939 (2)

Subject

• Mines and mineral resources--Colorado--Boulder County (2) *
• Mining engineering--Colorado (2)

Author

• Vanderburg, William O. (2) *

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