02164nem 2200517I 450 991070651800332120180214090621.0(CKB)5470000002457271(OCoLC)1015315236(EXLCZ)99547000000245727120171213d2017 ca engur|||||||||||crirdacontentcrdamediacrrdacarrierBedrock geology and hydrostratigraphy of the Edwards and Trinity aquifers within the Driftwood and Wimberley 7.5-minute quadrangles, Hays and Comal Counties, Texas /by Allan K. Clark and Robert R. Morris[Washington, D.C.] :U.S. Department of the Interior, U.S. Geological Survey,2017.1 online resource (1 map) color +1 pamphlet (iv, 12 pages : color illustrations)Scientific investigations map,2329-132X ;3386Relief shown by contours."North American vertical datum of 1988.""Lithologic and hydrostratisgraphic descriptions are from field observations and previous investigations."Includes 1 table, 2 ancillary maps, text and notes.Includes bibliographic reference in pamphlet (pages 10-12).Shields (Geology)TexasEdwards AquiferMapsShields (Geology)TexasTrinity AquiferMapsGeologyTexasHays CountyMapsGeologyTexasComal CountyMapsWimberley (Tex.)MapsDriftwood (Tex.)MapsGeological maps.lcgftMaps.lcgftShields (Geology)Shields (Geology)GeologyGeologyClark Allan K.1389180Morris Robert R.Geological Survey (U.S.),GPOGPOBOOK9910706518003321Bedrock geology and hydrostratigraphy of the Edwards and Trinity aquifers within the Driftwood and Wimberley 7.5-minute quadrangles, Hays and Comal Counties, Texas3499727UNINA