I've been about and about a few times in winter this year, these ones are of the Lairig Leacach in February, it took 3 hours to reach the bothy where normally it takes half that in more reasonable conditions. This was the deepest snow I've encountered for a while, all stream, rivers, and even small gorges were lost underneath it.
OK so we weren't camping, but in conditions like this, a bothy is the place to be - especially since we lugged a bag of coal up
Melting snow by the fire. This made the additional 10kg of coal worth the effort.
This is my mate and forum member Chomp leading the way and often finding himself waist deep in snow!