“…The latter achieve their greatest extent and thickness on lee slopes bordering Torridon Sandstone plateaux in the NW Highlands (Peach et al, 1913;Godard, 1965;Ballantyne and Whittington, 1987;Ballantyne, 1993Ballantyne, , 1995 but also occur on or at the margins of plateaux underlain by other lithologies, including Devonian sandstone on Orkney (Goodier and Ball, 1975), granite on Shetland and in the Cairngorms (Ball and Goodier, 1974), quartzite in NW Scotland (Pye and Paine, 1983), basalts on Mull and Skye (Birse, 1980;Ballantyne 1998), ultrabasic rocks on Rhum, Moine Schists in the NW Highlands and Dalradian schists in the Grampian Highlands (Ballantyne and Harris, 1994; Figure 1). Similar deposits have been reported from other maritime periglacial environments characterized by strong winds, such as NW Ireland (Wilson, 1989), Iceland (Arnalds, 2000) and the Faeroe Islands (Christiansen, 1998;Humlum and Christiansen, 1998).…”