 The geomorphology of these mountains is classical U-shaped glacial valleys with textbook examples of hanging valleys and intersecting valleys.The eastern slopes are devoted to sheep farming whilst the western slopes are intensively forested.Above the semi-improved grassland is some bracken but much of the higher ground is covered in typical "Calluna" / "Erica" communities interspersed with large areas of "Juncus", "Carex" and "Sphagnum" bogs.