2007-01-032022-02-032007-01-032022-02-03https://hdl.handle.net/11124/9805Date scanned: 2002-6-20.USBM #73110; Thinly bedded structure of immediate roof.Held in the Russell L. and Lyn Wood Mining History Archive, Arthur Lakes Library, Colorado School of Mines.Donor: United States Bureau of Mines.The thinly bedded structure of a sedimentary rock is shown underground at an unidentified mine.Rights management statement available at: http://library.mines.edu/digital/rights.htmlGeologyMine timberingScenes, undergroundUnderground miningStillImage