BossHogg
MIA

Oh it settles, up against whatever solid object the strong winds blow it against.Wouldn't it have been the PSA who were responsible for the design?
I've a vague recollection that the ditches are there to collect drifting snow so there may be method in the madness. I've always been intrigued by FI snow - even in a blizzard, it never seems to settle anywhere.
