KeywordsUnderground mining -- Colorado
Lead mines and mining -- Colorado -- San Miguel County
Zinc mines and mining -- Colorado -- San Miguel County
Mine buildings -- Colorado -- San Miguel County
Treasury Tunnel Mine (Colo.)
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AbstractCaption reads: "Treasury Tunnel Mine (became part of Idarado on the Telluride side of the mountain). Telluride Mines, circa 1940".
Buildings of the Treasury Tunnel property.