Sugar Loaf, Monmouthshire Sugar Loaf, Monmouthshire Sugar Loaf, sometimes called The Sugar Loaf ( or ), is a mountain situated north-west of Abergavenny in Monmouthshire, Wales. It is the southernmost of the summit peaks of the Black Mountains, with a height of 1,955 feet (596 metres). The original Welsh name of the hill appears to have been Mynydd Pen-y-fâl. Translated into English, this name means 'mountain of the head/top of the peak/summit' from "mynydd", "pen" and "bâl". The name Sugar Loaf has been popularly applied to numerous hills which have a perceived resemblance to a sugarloaf; the nearest other such hill is the
Sugar Loaf, Monmouthshire Sugar Loaf in Carmarthenshire. A southern foothill of Sugar Loaf, "Y Graig", was discovered in the 1990s to be the site of prehistoric flint tools dating from the Mesolithic, Neolithic and Bronze Ages. It is a popular misconception that Sugar Loaf is an 'extinct volcano'; an idea born perhaps from the striking resemblance of its conical outline, particularly when seen from the east, to that of a classic volcano. It is however composed entirely of sedimentary rocks. In common with the rest of the Black Mountains, the hill is formed from Old Red Sandstone which was laid down largely during