Just saw Vail has announced its guidelines for Colorado. Seems really excessive. I think most people aren't going to bother going with all these guidelines in place.
Vail Resorts owns five resorts in Colorado, including Vail, Beaver Creek, Breckenridge, Keystone and Crested Butte. Highlights of the protocols announced Thursday include:
Guests will be required to wear face coverings on mountains and in every area of resort operations, including lift lines, on lifts and in gondola cars.
Only related parties (guests skiing or riding together) will be loaded together on lifts, with exceptions: Two unrelated parties will be allowed to load on four-person chairlifts, seated on opposite sides of the chair; two unrelated singles or pairs will be allowed to sit on opposite sides of six-person chairs; two singles will be allowed to sit on opposite sides of gondola cabins.
A reservation system prioritizing Epic Pass holders will be implemented to limit numbers and ensure that guests will have the space they need while at the resort. Pass holders will be required to make reservations before arriving at the resort. The number of lift tickets sold to the general public on a given day will depend on how many pass holders have made reservations, and they will be sold only online or through Vail Resorts call centers.
https://theknow.denverpost.com/2020/08/27/vail-resorts-ski-season-coronavirus-reservations/244367/