02045oam 2200553 450 991070707070332120160309163909.0(CKB)5470000002460779(OCoLC)889723610(EXLCZ)99547000000246077920140901d1988 ua 0engurmn|||||||||txtrdacontentcrdamediacrrdacarrierStratigraphy of mid-Cretaceous Blackleaf and lower part of the Frontier formations in parts of Beaverhead and Madison counties, Montana /by Thaddeus S. Dyman and Douglas J. Nichols[Reston, Va.] :Department of the Interior, U.S. Geological Survey,1988.[Washington, D.C.] :United States Government Printing Office.1 online resource (iv, 31 pages) illustrations, mapsU.S. Geological Survey bulletin ;1773Title from title screen (viewed Aug. 28, 2014).Includes bibliographical references (pages 25-27).GeologyMontanaBeaverhead CountyGeologyMontanaMadison CountyGeology, StratigraphicCretaceousCretaceous Geologic PeriodfastGeologyfastGeology, StratigraphicfastMontanaBeaverhead CountyfastMontanaMadison CountyfastGeologyGeologyGeology, StratigraphicCretaceous Geologic Period.Geology.Geology, Stratigraphic.Dyman T. S.1382170Nichols Douglas J.Geological Survey (U.S.),COPCOPOCLCOOCLCFGPOBOOK9910707070703321Stratigraphy of mid-Cretaceous Blackleaf and lower part of the Frontier formations in parts of Beaverhead and Madison counties, Montana3531558UNINA