Walvoord, O. W.
Role | Title | Holding Repository | |
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creatorOf | Rodgers, J. H. Uranium Company of America, Argo mill, Idaho Springs, Colorado / J.H. Rodgers, O.W. Walvoord. | Colorado School of Mines, Arthur Lakes Library | |
creatorOf | Prosser, Warren C. [Reports concerning selected mining claims in Gilpin County, Colorado, and Argo mill]. | Colorado School of Mines, Arthur Lakes Library | |
creatorOf | Van Winkle, C. T. Blue Bell copper mine, Big Bug mining district, Yavapai County, Arizona. | Colorado School of Mines, Arthur Lakes Library |
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