01179oam 2200373 450 991070417240332120160727145816.0(CKB)5470000002437938(OCoLC)952086780(EXLCZ)99547000000243793820160623d2009 ua 0engur|||||||||||txtrdacontentcrdamediacrrdacarrierDangers at abandoned mines...can kill youDenver, CO :BLM National Operations Center,2009.1 online resource (2 unnumbered pages) illustrationsTitle from title screen (viewed on June 17, 2016)."BLM/WO/GI-13/009+3720"--Page [2]."P-416"--Page [2].Abandoned minesRisk assessmentUnited StatesMine safetyUnited StatesAbandoned minesRisk assessmentMine safetyNational Operations Center (U.S.),GPOGPOGPOBOOK9910704172403321Dangers at abandoned mines...can kill you3314329UNINA