Blà Bheinn (also known as Blaven), is a mountain on the Isle of Skye in Scotland. It is usually regarded as an outlier to the Black Cuillin. It is mainly composed of gabbro, a rock with excellent grip for mountaineers and scramblers. The name is thought to mean blue mountain, from a combination of Norse and Gaelic. Whereas in Modern Norwegian means blue, the Old Norse word could, however, also refer to the colours blue-black and black.