Created in collaboration with nonprofit Summit Huts Association, the Sister's Cabin by Colorado Timberframe is a timber ski hut perched atop Breckenridge's Baldy Mountain that can only be accessed by a 3.5-mile trek. Due to its remote location, the retreat operates entirely off-grid. It was built with prefabricated timber elements and SIPs airlifted to the site, and it features a luxurious interior that can accommodate 14 people.