2007-01-032022-02-032007-01-032022-02-03https://hdl.handle.net/11124/10506Date scanned: 2002-7-9.USBM #64554; Sixty-foot aluminum extension ladder.Held in the Russell L. and Lyn Wood Mining History Archive, Arthur Lakes Library, Colorado School of Mines.Donor: United States Bureau of Mines.A miner climbs an extension ladder underground at an unidentified mine. Another miner stands at the foot of the ladder.Rights management statement available at: http://library.mines.edu/digital/rights.htmlMinersMiningScenes, undergroundUnderground miningStillImage