Dwyer, Charles F.2007-01-032022-02-032007-01-032022-02-03https://hdl.handle.net/11124/8056Date scanned: 2006-08-01.Held in the Russell L. and Lyn Wood Mining History Archive, Arthur Lakes Library, Colorado School of Mines.Yan helicopter construction, Winter Park, 1977.color photographsIn copyright - non-commercial use permitted (http://rightsstatements.org/vocab/InC-NC/1.0/).Winter Park ResortYan Lift Engineering and Manufacturing CompanyAircranesRopeway constructionAircrane lifting tower during construction at Winter Park, ColoradoStillImage