Rocky crags and outcrops
Across The Chevin there are large rocky crags of Millstone Grit and areas of exposed rock previously used for quarrying. These rocky outcrops offer good opportunities for nesting birds and the old quarried areas have interesting patterns of re-vegetation.
There are also a range of boundary features such as stone walls and hedgerows that offer good opportunities for biodiversity. The stone walls offer undisturbed surfaces for bryophytes and lichens to grow, and some hedgerows have been layered to extend their lifetime. A field survey in 1996 revealed that there are 15.5 km of boundary features present (walls, hedgerows and fences).