02377oam 2200661 450 991071158880332120181025092429.0(CKB)5470000002484160(OCoLC)965548972(OCoLC)953266961(OCoLC)995470000002484160(EXLCZ)99547000000248416020161207d1951 ua 0engurbn|||||||||txtrdacontentcrdamediacrrdacarrierGeology and ground-water resources of the Helena Valley, Montana /by Howard W. Lorenz and Frank A. Swenson ; with a section on the chemical quality of the water ; by Herbert A. Swenson ; prepared as part of a program of the Department of the Interior for development of the Missouri River BasinWashington, D.C. :United States Department of the Interior, Geological Survey,1951.1 online resource (ii, 68 pages) illustrations, maps +3 platesGeological Survey circular ;83"April 1951."Includes bibliographical references (pages 42-43).GeologyMontanaPrickly Pear Creek ValleyGroundwaterMontanaPrickly Pear Creek ValleyHydrogeologyMontanaPrickly Pear Creek ValleyHydrologyMontanaPrickly Pear Creek ValleyGeologyfastGroundwaterfastHydrogeologyfastHydrologyfastPrickly Pear Creek Valley (Mont.)MontanaMontanafastMontanaPrickly Pear Creek ValleyfastGeologyGroundwaterHydrogeologyHydrologyGeology.Groundwater.Hydrogeology.Hydrology.Lorenz Howard Wilhelm1408283Swenson Frank A(Frank Albert),Swenson Herbert A(Herbert Alfred),1911-Geological Survey (U.S.),OCLCEOCLCECOPOCLCFOCLCQOCLCAGPOBOOK9910711588803321Geology and ground-water resources of the Helena Valley, Montana3491774UNINA