The area has two main subdivisions. The Dark Peak forms an arc around the northern and western limits of the area, where the underlying limestone is underlain by Millstone Grit and the land consists mainly of bleak moorland plateaux. Conversely, the White Peak is characterised by more dramatic scenery, with numerous limestone gorges and valleys. | The area has two main subdivisions. The Dark Peak forms an arc around the northern and western limits of the area, where the underlying limestone is underlain by Millstone Grit and the land consists mainly of bleak moorland plateaux. Conversely, the White Peak is characterised by more dramatic scenery, with numerous limestone gorges and valleys. |