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 railway station the Sugar Loaf vantage point, although it was originally built to serve a number of cottages occupied by railway workers (such as signalmen and track gangers). The children of the workers travelled by train to school in Llanwrtyd Wells. South of the station the line reaches the summit at above sea level and then passes beneath the hills via the Sugar Loaf tunnel, which is approached by gradients as steep as 1 in 60. It then descends steadily for the next down to . The climb up to the summit here was a challenging one for train crews in steam