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001 9910713851103321
005 20200902084908.0
035   $a(CKB)5470000002505183
035   $a(OCoLC)963254211
035   $a(OCoLC)995470000002505183
035   $a(EXLCZ)995470000002505183
100   $a20161118d1983      ua             0
101 0 $aeng
135   $aurbn|||||||||
181   $ctxt$2rdacontent
182   $cc$2rdamedia
183   $acr$2rdacarrier
200 10$aPotential effects of surface coal mining on the hydrology of the Greenleaf-Miller area, Ashland coal field, southeastern Montana /$fby Gary W. Levings
210  1$aHelena, Montana :$cU.S. Geological Survey,$d1983.
215   $a1 online resource (iv, 31 pages) $cillustrations, maps
225 1 $aWater-resources investigations report ;$v82-4101
300   $a"February 1983."
300   $a"Prepared in cooperation with the U.S. Bureau of Land Management."
320   $aIncludes bibliographical references (pages 21-23).
606   $aWater quality$zMontana
606   $aAcid mine drainage$xEnvironmental aspects$zMontana
606   $aCoal mines and mining$xEnvironmental aspects$zMontana
606   $aStrip mining$xEnvironmental aspects$zMontana
606   $aAcid mine drainage$xEnvironmental aspects$2fast
606   $aCoal mines and mining$xEnvironmental aspects$2fast
606   $aStrip mining$xEnvironmental aspects$2fast
606   $aWater quality$2fast
615  0$aWater quality
615  0$aAcid mine drainage$xEnvironmental aspects
615  0$aCoal mines and mining$xEnvironmental aspects
615  0$aStrip mining$xEnvironmental aspects
615  7$aAcid mine drainage$xEnvironmental aspects.
615  7$aCoal mines and mining$xEnvironmental aspects.
615  7$aStrip mining$xEnvironmental aspects.
615  7$aWater quality.
700   $aLevings$b Gary W.$01400470
712 02$aGeological Survey (U.S.),
712 02$aUnited States.$bBureau of Land Management.
801  0$bCOP
801  1$bCOP
801  2$bOCLCO
801  2$bOCLCA
801  2$bOCLCF
801  2$bUND
801  2$bGPO
906   $aBOOK
912   $a9910713851103321
996   $aPotential effects of surface coal mining on the hydrology of the Greenleaf-Miller area, Ashland coal field, southeastern Montana$93499382
997   $aUNINA