Keystone, CO – Keystone Resort in Colorado will bid farewell to to its 2010-11 ski and snowboard season this weekend with events including Keystone’s first Slush Cup.nThis pond skimming style event on Sunday will give prizes for different categories that will range from a free 2011-12 season pass to other Keystone schwag. Concluding the Slush Cup is a free concert by reggae band Irie Still. Closing weekend hosts a third installment of River Run Rocks on Saturday with a free concert featuring Robert Earl Keen and opening act Marty Jones & The Great Unknowns.

All weekend there will be lodging specials and free events for everyone. For a complete schedule of events, including the Volcom Peanut Butter & Rail Jam, visit Keystone’s website. Registration for the Slush Cup takes place at Mountain House base area on Sunday and is open to up to 75 competitors.