01466oam 2200457 450 991071156650332120181102093617.0(CKB)5470000002484385(OCoLC)953259122(OCoLC)995470000002484385(EXLCZ)99547000000248438520160708e19591949 ua 0engurbn|||||||||txtrdacontentcrdamediacrrdacarrierLandslide problems of southwestern Colorado /by Helen D. VarnesWashington, D.C. :United States Department of the Interior, Geological Survey,1949.Washington, D.C. :United States Department of the Interior, Geological Survey,1959.1 online resource (13 pages) illustrations, mapsGeological Survey circular ;31"March 1949, reprinted 1959."Includes bibliographical references.LandslidesColoradoLandslidesfastColoradofastLandslidesLandslides.Varnes Helen D(Helen Dowling),1411291Geological Survey (U.S.),COPCOPOCLCOOCLCFOCLCAGPOBOOK9910711566503321Landslide problems of southwestern Colorado3502153UNINA