Embark on an outdoor adventure with this ski lift ticket to keystone ski resort and breckenridge ski resort in colorado by buying your ticket in advance you can avoid the long lines and head straight to the slopes for some fun choose from a 1 to 10 day ticket valid for up to 14 days you can use your ticket at keystone one of the few ski resorts in the us to offer night skiing and beautiful breckenridge located nearby see you on the mountain