Llyn Cwm Llwch both Pen y Fan and Corn Du and indeed from the spur of Pen Milan to its west. Llyn Cwm Llwch Llyn Cwm Llwch () is a small lake or pool in the Brecon Beacons National Park in Powys, Wales. It is between 1 and 2 acres: much smaller than the two glacial lakes in the west of the Black Mountain (range): Llyn y Fan Fawr and Llyn y Fan Fach. It is of glacial origin, occupying a rock hollow beneath the peaks of Pen y Fan and Corn Du in the central Brecon Beacons. It is drained by the
Pen-y-ghent 'Head of the Winds'. It is also possible that "ghent" may have been a tribal name and that the hill may have once been an important tribal centre. It is also acceptable to write the name as "Pen y Ghent" rather than "Pen-y-ghent". In 2004 the body of an unidentified female, dubbed by the media as the "Lady of the Hills", was found near to the entrance of Sell Gill Hole. Pen-y-ghent Pen-y-ghent or Penyghent is a fell in the Yorkshire Dales, England. It is the smallest of the Yorkshire Three Peaks at ; the other two being Ingleborough and