02036oam 2200529 450 991071368160332120200617101415.0(CKB)5470000002502855(OCoLC)966434854(OCoLC)995470000002502855(EXLCZ)99547000000250285520161219d1991 ua 0engurbn|||||||||txtrdacontentcrdamediacrrdacarrierPlan of study for the regional aquifer-system analysis of the Appalachian Valley and Ridge, Piedmont, and Blue Ridge physiographic provinces of the eastern and southeastern United States, with a description of study-area geology and hydrogeology /by Lindsay A. Swain [and three others]Richmond, Virginia :U.S. Geological Survey,1991.1 online resource (v, 44 pages) illustrations, mapsWater-resources investigations report ;91-4066Includes bibliographical references (pages 39-44).GroundwaterAppalachian RegionGroundwaterResearchAquifersEast (U.S.)AquifersSouthern StatesGroundwaterfastGroundwaterResearchfastAppalachian RegionfastGroundwaterGroundwaterResearch.AquifersAquifersGroundwater.GroundwaterResearch.Swain Lindsay A.1400908Geological Survey (U.S.),COPCOPOCLCOOCLCFOCLCAGPOBOOK9910713681603321Plan of study for the regional aquifer-system analysis of the Appalachian Valley and Ridge, Piedmont, and Blue Ridge physiographic provinces of the eastern and southeastern United States, with a description of study-area geology and hydrogeology3468624UNINA