LEADER 01833nam 2200457Ia 450 001 9910696899303321 005 20080721095454.0 035 $a(CKB)5470000002381884 035 $a(OCoLC)234303596 035 $a(EXLCZ)995470000002381884 100 $a20080721d2007 ua 0 101 0 $aeng 135 $aurmn||||||||| 181 $ctxt$2rdacontent 182 $cc$2rdamedia 183 $acr$2rdacarrier 200 00$aEnvironmental effects of historical mining in the Animas River watershed, southwestern Colorado$b[electronic resource] 210 1$a[Reston, Va.] :$cU.S. Dept. of the Interior, U.S. Geological Survey,$d[2007] 215 $a4 unnumbered pages $cdigital, PDF file 225 1 $aFact sheet ;$v2007-3051 300 $aTitle from title screen (viewed on July 18, 2008). 300 $a"August 2007." 606 $aAcid mine drainage$zAnimas River Watershed (Colo. and N.M.) 606 $aAcid mine drainage$zColorado$zSan Juan County 606 $aMines and mineral resources$xEnvironmental aspects$zAnimas River Watershed (Colo. and N.M.) 606 $aMines and mineral resources$xEnvironmental aspects$zColorado$zSan Juan County 606 $aWater$xPollution$zAnimas River Watershed (Colo. and N.M.) 606 $aWater$xPollution$zColorado$zSan Juan County 615 0$aAcid mine drainage 615 0$aAcid mine drainage 615 0$aMines and mineral resources$xEnvironmental aspects 615 0$aMines and mineral resources$xEnvironmental aspects 615 0$aWater$xPollution 615 0$aWater$xPollution 712 02$aGeological Survey (U.S.) 801 0$bGPO 801 1$bGPO 906 $aBOOK 912 $a9910696899303321 996 $aEnvironmental effects of historical mining in the Animas River watershed, southwestern Colorado$93207130 997 $aUNINA