LEADER 02164nem 2200517I 450 001 9910706518003321 005 20180214090621.0 035 $a(CKB)5470000002457271 035 $a(OCoLC)1015315236 035 $a(EXLCZ)995470000002457271 100 $a20171213d2017 ca 101 0 $aeng 135 $aur||||||||||| 181 $ccri$2rdacontent 182 $cc$2rdamedia 183 $acr$2rdacarrier 200 10$aBedrock geology and hydrostratigraphy of the Edwards and Trinity aquifers within the Driftwood and Wimberley 7.5-minute quadrangles, Hays and Comal Counties, Texas /$fby Allan K. Clark and Robert R. Morris 210 1$a[Washington, D.C.] :$cU.S. Department of the Interior, U.S. Geological Survey,$d2017. 215 $a1 online resource (1 map) $ccolor +$e1 pamphlet (iv, 12 pages : color illustrations) 225 1 $aScientific investigations map,$x2329-132X ;$v3386 300 $aRelief shown by contours. 300 $a"North American vertical datum of 1988." 300 $a"Lithologic and hydrostratisgraphic descriptions are from field observations and previous investigations." 300 $aIncludes 1 table, 2 ancillary maps, text and notes. 320 $aIncludes bibliographic reference in pamphlet (pages 10-12). 606 $aShields (Geology)$zTexas$zEdwards Aquifer$vMaps 606 $aShields (Geology)$zTexas$zTrinity Aquifer$vMaps 606 $aGeology$zTexas$zHays County$vMaps 606 $aGeology$zTexas$zComal County$vMaps 607 $aWimberley (Tex.)$vMaps 607 $aDriftwood (Tex.)$vMaps 608 $aGeological maps.$2lcgft 608 $aMaps.$2lcgft 615 0$aShields (Geology) 615 0$aShields (Geology) 615 0$aGeology 615 0$aGeology 700 $aClark$b Allan K.$01389180 702 $aMorris$b Robert R. 712 02$aGeological Survey (U.S.), 801 0$bGPO 801 1$bGPO 906 $aBOOK 912 $a9910706518003321 996 $aBedrock geology and hydrostratigraphy of the Edwards and Trinity aquifers within the Driftwood and Wimberley 7.5-minute quadrangles, Hays and Comal Counties, Texas$93499727 997 $aUNINA