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dc.date1900?-1999?
dc.date.accessioned2007-01-03T05:59:47Z
dc.date.accessioned2022-02-03T09:24:06Z
dc.date.available2007-01-03T05:59:47Z
dc.date.available2022-02-03T09:24:06Z
dc.identifierlibimagesU1602
dc.identifier.urihttp://hdl.handle.net/11124/9830
dc.descriptionB-134/1032; Figure 5 drill carriage jumbo and drilling detail.
dc.descriptionDate scanned: 2002-07-12.
dc.descriptionHeld in the Russell L. and Lyn Wood Mining History Archive, Arthur Lakes Library, Colorado School of Mines.
dc.descriptionDonor: United States Bureau of Mines.
dc.description.abstractA jumbo is a mobile drill carriage or scaffold on which several drills could be mounted. This illustration may depict construction details of part of the tunnel system for New York City's water supply from the Catskill watershed. In 1905 the New York State legislature passed an act allowing the City to acquire lands and build water control structures in the Catskills for its water supply, including the East Delaware Tunnel, West Delaware Tunnel and the Rondout Tunnel (Delaware Aqueduct).
dc.publisherColorado School of Mines. Arthur Lakes Library
dc.rightsRights management statement available at: http://library.mines.edu/digital/rights.html
dc.subjectWater supply
dc.subjectTunnels and tunneling
dc.titleDrill carriage jumbo and drilling detail, diagram
dc.typeStillImage
dc.typeText
dc.contributor.institutionArthur Lakes Library
dc.contributor.institutionRussell L. and Lyn Wood Mining History Archive
dc.contributor.institutionUnited States. Bureau of Mines


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