 The entire range lies within a block defined by the Church Stretton Fault Zone to the northwest and the Swansea Valley Disturbance to the southeast.Some isolated patches of peat have been mapped as have some small areas of head consisting of pebbly sand, silt and clay.There are a number of scheduled ancient monuments in the area amongst which are Maesgwyn mound, a presumed Bronze Age ritual site, a round cairn to the north of the roundabout and nearby is a probable Bronze Age standing stone An extensive mediaeval settlement has been identified at Pentre Jack at the western end of the common.