There are limited outcrops on the Isle of Man and more extensive ones in Anglesey notably along the Menai Strait, around Benllech and towards Puffin Island. The Carboniferous Limestone belt extends eastwards to form the Great Orme at Llandudno, the neighbouring Little Orme and a zone of country in inland Denbighshire running through Denbigh and Ruthin. A broader belt forms high ground immediately east of the Clwydian Hills extending south to form the impressive west-facing Eglwyseg escarpment north of Llangollen and continuing as a broken outcrop southwards beyond Oswestry.