LEADER 02083oam 2200589 450 001 9910713390803321 005 20200324095256.0 035 $a(CKB)5470000002499731 035 $a(OCoLC)985370191 035 $a(OCoLC)995470000002499731 035 $a(EXLCZ)995470000002499731 100 $a20170503d1984 ua 0 101 0 $aeng 135 $aurbn||||||||| 181 $ctxt$2rdacontent 182 $cc$2rdamedia 183 $acr$2rdacarrier 200 10$aGeochemistry and geohydrology of the West Decker and Big Sky coal-mining areas, southeastern Montana /$fby Robert E. Davis 210 1$aHelena, Montana :$cU.S. Geological Survey,$d1984. 215 $a1 online resource (vi, 109 pages) $cillustrations, maps 225 1 $aWater-resources investigations report ;$v83-4225 300 $a"Prepared in cooperation with the U.S. Bureau of Land Management and the Montana Bureau of Mines and Geology." 300 $a"February 1984." 320 $aIncludes bibliographical references (pages 61-63). 606 $aCoal mines and mining$xEnvironmental aspects$zMontana 606 $aGeochemistry$zMontana 606 $aHydrogeology$zMontana 606 $aGroundwater$zMontana 606 $aCoal mines and mining$2fast 606 $aGroundwater$2fast 607 $aBig Sky Mine (Mont.) 607 $aMontana$2fast 615 0$aCoal mines and mining$xEnvironmental aspects 615 0$aGeochemistry 615 0$aHydrogeology 615 0$aGroundwater 615 7$aCoal mines and mining. 615 7$aGroundwater. 700 $aDavis$b Robert E$c(Hydrologist),$0309412 712 02$aGeological Survey (U.S.), 712 02$aUnited States.$bBureau of Land Management. 712 02$aMontana Bureau of Mines and Geology. 801 0$bCOP 801 1$bCOP 801 2$bOCLCO 801 2$bOCLCF 801 2$bOCLCA 801 2$bGPO 906 $aBOOK 912 $a9910713390803321 996 $aGeochemistry and geohydrology of the West Decker and Big Sky coal-mining areas, southeastern Montana$93446359 997 $aUNINA