Foinaven (Scottish Gaelic: Fionne Bheinn, IPA: [ˈfjuːɲə ˈvjeɲ]) is a mountain in Scotland, situated in the far north-west corner of the Scottish Highlands. Like many of the monolithic mountains that surround it, the mountain is within the Moine Thrust Belt and is made up of imbricated layers of Cambrian quartzite which overlie the older Lewisian gneiss basement. The quartzite, being tougher, stood firm when all the surrounding rock was eroded away, leaving the huge mountain isolated. Its highest point is named Ganu Mòr. Foinaven's smaller neighbour is Arkle.