01490oam 2200469 450 991071154730332120181108110116.0(CKB)5470000002484579(OCoLC)953259218(OCoLC)995470000002484579(EXLCZ)99547000000248457920160708d1950 ua 0engurbn|||||||||txtrdacontentcrdamediacrrdacarrierDetailed sections of pre-Pennsylvanian rocks along the Front Range of Colorado /by John C. MaherWashington, D.C. :United States Department of the Interior, Geological Survey,1950.1 online resource (ii, 20 pages) mapGeological Survey circular ;68Includes bibliographical references (page 20).GeologyFront Range (Colo. and Wyo.)GeologyColoradoGeologyfastColoradofastRocky MountainsfastGeologyGeologyGeology.Maher John C(John Charles),1914-1386436Geological Survey (U.S.),COPCOPOCLCOOCLCFOCLCAGPOBOOK9910711547303321Detailed sections of pre-Pennsylvanian rocks along the Front Range of Colorado3500882UNINA