Black Mountain (hill)

Black Mountain
Twyn Llech (Welsh)
The summit, crossed by the Offa's Dyke Path (prior to repair of erosion damage)
Highest point
Elevation703.6 m (2,308 ft)
Prominence155 m (509 ft)
Parent peakWaun Fach
ListingMarilyn, Hewitt, County Top, Nuttall
Coordinates52°00′30″N 3°05′08″W / 52.00847°N 3.0855°W / 52.00847; -3.0855
Geography
Black Mountain
Herefordshire, England / Powys (former Brecknockshire), Wales
Parent rangeBlack Mountains
OS gridSO255350
Topo mapOS Landranger 161
Climbing
Easiest routeThe Cat's Back
Listed summits of Black Mountain (hill)
Name Grid ref Height Status
Black Mountain South Top SO267323 637 metres (2,090 ft) Nuttall

The Black Mountain (Welsh: Twyn Llech 'hill of the stone') is a hill in the Black Mountains. It is the only Marilyn to fall exactly on the WelshEnglish border, and it straddles Powys (Wales) and Herefordshire (England). Its parent peak, Waun Fach, lies to the west.