[czinck]

Because of that, all ski resorts on US public land aren't actually "exclusive". A lift ticket just buys you access to the lifts, you can hike up during the winter or summer, with restrictions during the winter mainly around everyone's safety (designated uphill routes, don't go where they're doing avalanche control).

[exabrial]

This is 100% correct. You can actually walk to the top of a mountain and ski down. Or in the summer time, you can bike up and mountain bike down...

[someguydave]

Sure, so if there is a via feratta on public land I imagine there will be similar access, although controlling access to a via feratta would be much easier than a ski run.