Cuillin

The Cuillin (Scottish Gaelic: An Cuilthionn or An Cuiltheann) are properly and locally known as The Cuillins in the plural, and are a range of rocky mountains located on the Isle of Skye in Scotland. The true Cuillin is also known as the Black Cuillin to distinguish it from the Red Hills (na Beanntan Dearga) across Glen Sligachan. The Red Hills are lower and, being less rocky, have fewer scrambles or climbs.