Hi,

Yep, I already noticed that certain maps renders these kind of situation in different ways but actually I'm not so sure what the right way to map it might be (unless a specific tag will be created). That's because certain areas are undoubtly scree but others are a 50/50 mixture of scree and forest and within a few years they alternate very fast between greener and rockier periods.

The 3D rendition of F4Map is really cool!!

Yeah, I should begin learning out JOSM. 

Ciao!