02358oam 2200625 450 991071360190332120200717105639.0(CKB)5470000002503660(OCoLC)1153330448(OCoLC)622483905(OCoLC)667913697(OCoLC)679322228(EXLCZ)99547000000250366020200505d2000 ua 0engurmn|||||||||txtrdacontentcrdamediacrrdacarrierHydrology of the Helena area bedrock, west-central Montana, 1993-98 /by Joanna N. ThamkeHelena, MT :U.S. Department of the Interior, U.S. Geological Survey,2000.Denver, CO :Branch of Information Services.1 online resource (iv, 119 pages) illustrations, maps (some color)Water-resources investigations report ;00-4212"With a section on Geologic setting and a generalized bedrock geologic map by Mitchell W. Reynolds."Chiefly tables.Three plates of ill. and maps on 3 folded leaves in 2 pockets."In cooperation with Lewis and Clark County Water Quality Protection District."Includes bibliographical references (pages 33-36).Hydrology of Helena area bedrock, west-central Montana, 1993-98HydrologyMontanaHelenaHydrogeologyMontanaHelenaGroundwaterQualityMontanaHelenaGroundwaterQualityfastHydrogeologyfastHydrologyfastMontanaHelenafastHydrologyHydrogeologyGroundwaterQualityGroundwaterQuality.Hydrogeology.Hydrology.553.7/0973 s551.49/09786/615Thamke Joanna N.1415995Reynolds Mitchell W1385702Lewis and Clark County Water Quality Protection District (Mont.)Geological Survey (U.S.),OCLCEOCLCEOCLCFDMYGPOBOOK9910713601903321Hydrology of the Helena area bedrock, west-central Montana, 1993-983545146UNINA