02027oam 2200517 450 991070694230332120180419080115.0(CKB)5470000002460056(OCoLC)896810673(OCoLC)995470000002460056(EXLCZ)99547000000246005620141123d1981 ua 0engurmn|||||||||txtrdacontentcrdamediacrrdacarrierSummary of the engineering geology of the Harold D. Roberts Tunnel, Colorado /by Ernest E. WahlstromWashington :United States Department of the Interior, Geological Survey,1981.1 online resource (v, E15 pages) illustrations +2 platesGeological Survey professional paper ;831-EEngineering geology of the Harold D. Roberts Tunnel, ColoradoTitle from title screen (viewed October 6, 2014)."A critical review and analysis of the application of geology during planning and construction of a major water tunnel in the Rocky Mountain West."Includes bibliographical references (page E15).Engineering geologyColoradoPark CountyEngineering geologyColoradoSummit CountyEngineering geologyfastHarold D. Roberts Tunnel (Colo.)ColoradoHarold D. Roberts TunnelfastColoradoPark CountyfastColoradoSummit CountyfastEngineering geologyEngineering geologyEngineering geology.Wahlstrom Ernest E(Ernest Eugene),1909-2000,1399312Geological Survey (U.S.),COPCOPOCLCOOCLCFGPOBOOK9910706942303321Summary of the engineering geology of the Harold D. Roberts Tunnel, Colorado3542801UNINA