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dc.date1981?
dc.date.accessioned2007-01-03T05:57:03Z
dc.date.accessioned2022-02-03T09:22:35Z
dc.date.available2007-01-03T05:57:03Z
dc.date.available2022-02-03T09:22:35Z
dc.identifierlibimagesNMHFM664
dc.identifier.urihttp://hdl.handle.net/11124/10476
dc.descriptionThe 'Black Jack' Mill from the 'Adit' tunnel 6/18/81.
dc.descriptionDate scanned: 2001-09-12.
dc.descriptionIdentifier: NMHFM-664.
dc.descriptionRelated photographs: NMHFM-650, NMHFM-651, NMHFM-652, NMHFM-653, NMHFM-661, NMHFM-663, NMHFM-665, NMHFM-666.
dc.descriptionUnmounted; text on verso.
dc.descriptionHeld in the National Mining Hall of Fame and Museum.
dc.description.abstractThis is the site a mill operated by the Big Five Mining Company in the early 1890s to process ores from the mines in the Lefthand Creek area near Ward. The area of Lefthand Creek in the Ward district, Boulder County, Colorado, was one of the region's richest gold and silver producers by 1870. The Black Jack (Captain Jack) Mine was operated intermittently starting in 1917. The company Captain Jack, Ltd. acquired possession of the mill works area for a local mill operation in 1974. Contamination from the Captain Jack and nearby mine and mill areas was found to threaten drinking water supplies in the late 1990s. The area around the Big Five Mine tunnel, mill, and Captain Jack Mine was designated as a Superfund hazardous waste site in 2003.
dc.description.sponsorshipSponsored by the Colorado State Library, the regional library systems of Colorado, and the Institute of Museum and Library Services.
dc.publisherColorado School of Mines. Arthur Lakes Library
dc.rightsRights management statement available at: http://library.mines.edu/digital/rights.html
dc.subjectGold mines and mining
dc.subjectOre processing plants
dc.subjectSilver mines and mining
dc.subjectUnderground mining
dc.titleCaptain Jack Mill site
dc.typeStillImage
dc.contributor.institutionColorado Digitization Project
dc.contributor.institutionNational Mining Hall of Fame and Museum


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