The official rental shop of Aspen. Four Mountain Sports is the only rental shop in the valley with locations at the base of Aspen Mountain, Snowmass, Buttermilk and Aspen Highlands. Customers can take advantage of our overnight storage and transfer – no matter where they decide to ski or snowboard Four Mountain Sports will get their gear to the mountain. Choose from top-of-the-line, perfectly tuned equipment. Powder day? Swap our your skis/snowboard for powder skis or a powder snowboard as often as you like.