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Uranium ore processing -- ColoradoNational Lead Company, Inc.
Uranium ore processing plants -- Colorado -- Mesa County
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Four men wearing work clothes standing by plant equipment, National Lead Company, Inc.Caption reads: "Figure 5. Left to right: Ralph Shimmin, Acid Plant Foreman; Lyle Smith, Buyer; Guy Winslow, Alkaline Plant Foreman; Paul Davis, Maintenance Foreman."