Can you do anything with 15' of snow? When will they be able to function at all? If they aren't simply quoting drift depth, how can buildings be even visible? I've just never experience anything close to that level of snow depth and so can't even visualize what the area looks like in the big picture sense.
(Heading to Frisco/Breckinridge this weekend for snow. I suppose the n+1 rule works just as well for skis as it does for bikes and I'm up to n=2 post last trip.)