| OS Landranger 161|
| Hewitt, Nuttall, County top|
quarry of the beacon (Welsh)
Black Mountains, South Wales
Rhos Dirion, Twmpa, Waun Fach, Pen y Gadair Fawr, Black Mountain
Chwarel y Fan Wikipedia
Chwarel y Fan is a peak in the Black Mountains in south-eastern Wales. It is the highest rise on the long ridge which extends southeastwards from Rhos Dirion. The ridge continues southeastwards to the lesser summit of Bal-Mawr whose top is adorned by a trig point at 607 metres (1,991 ft) above sea level. A further 1 km southeast along the ridge is the lesser top of Bal-Bach at a height of just over 520 metres (1,710 ft). Chwarel y Fan is the highest point in Monmouthshire unitary authority.
The summit is on a thin ridge and is crowned by a cairn. On the other sides of the valleys: to the west is Pen Twyn Mawr and to the east is Black Mountain.