Just over 10,000 years ago Scotland was covered by an ice sheet around a mile thick. This immense expanse of frozen water flowed over the landscape, scraping it clear of topsoil and leaving behind these magnificent U-shaped valleys. The resulting land was thus devoid of soil, and it has taken thousands of years to build up what there is today, which explains the beautiful ground covers that manage to eke out their existence on this most breathtaking landscape. #mortonsinscotland2018 #geologylessonoftheday #northernhemisphere #awesomeandamazingvistas from Instagram: https://ift.tt/2GgwRyL