The Black Mountains (Welsh: Y Mynyddoedd Duon) are a group of hills spread across parts of Powys and Monmouthshire in southeast Wales, and extending across the national border into Herefordshire, England. They are the easternmost of the four ranges of hills that comprise the Brecon Beacons National Park, and are frequently confused with the westernmost, which is known as the Black Mountain. To confuse matters further, there is a peak in the Black Mountains called Black Mountain.
Table Mountain, Pen Cerrig Calch 701, Pen Allt Mawr 719, Waun Fach 810, Pen Gadair Fawr 800, Pen Tywn Mawr 658, just north of phone box at Pentwyn. 
