Caer Caradoc rises sharply out of a narrow valley known as the Stretton Gap. It is the highest point on a high, narrow, northeast–southwest "whaleback ridge", sometimes called a hogsback ridge. The Wrekin is a very similarly shaped hill and on the same alignment, some 10 miles (16 km) to the north-east. Caer Caradoc can be fairly easily climbed from Church Stretton but the ascent/descent is steep; a more gentle climb is from the village of Cardington, which lies two miles (3 km) east.
Much of the hill is composed from volcanic rocks, like the Wrekin and other hills, formed of narrow ridges of resistant Precambrian rock thrust upwards by movements deep down along the Church Stretton Fault. This fault line runs from Staffordshire in England to Pembrokeshire in Wales and can be seen on Ordnance Survey maps as a line of springs on this hill.[3]
