Weather does wonders on buildings - see the list of Missions in Baja California - many are just barely a foundation, some are absolutely nothing at all left.

https://en.wikipedia.org/wiki/Spanish_missions_in_Baja_Calif...

And that's even without major winter snow storms. I'm sure you could find ruins of the chalets (many of which might have been very rustic by our standards), but not much more.