• Significance: a possible Scandinavian erratic on Orkney.

  • For well over a century fragments of chalk and flint have been recovered from the shelly tills of Orkney and Caithness. Rae (1976) plotted the known distribution in Orkney, demonstrating a marked concentration on the eastern side of the islands.

  • In a few parts of Scotland, including northern Lewis, Berwickshire, Buchan, Caithness and Orkney, the last ice sheet flowed across marine sediments before moving on to the current land area.