South America Ski Resort Opening Dates by Robert Barker | Jun 14, 2012 | Blog Gran Catedral (Bariloche)-To Be Determined Chapelco-TBD Cerro Castor-June 22 El Colorado-TBD La Hoya-June 23 La Parva-TBD Las Lenas-June 20 Nevados de Chillan-TBD Portillo-June 30 Valle Nevado-June...