The Clwydian Range is a series of hills and mountains in north east Wales that runs from Llandegla in the south to Prestatyn in the north, with the highest point being the popular Moel Famau. The range is designated as an Area of Outstanding Natural Beauty. The AONB has been extended to include the Dee Valley around Llangollen including the Horseshoe Pass and Castell Dinas Bran, extending the area to 150 square miles (389 square km). The highest point in the AONB is Moel y Gamelin at 1,893 feet (577 metres).