| Black Mountain | |
|---|---|
| Twyn Llech (Welsh) | |
&sq=&lang=&file=File:Black_Mountain_Top.jpg) The summit, crossed by the Offa's Dyke Path | |
| Highest point | |
| Elevation | 703.6 m (2,308 ft) |
| Prominence | 155 m (509 ft) |
| Parent peak | Waun Fach |
| Listing | Marilyn, Hewitt, County Top, Nuttall |
| Coordinates | 52°00′30″N 3°05′08″W / 52.00847°N 3.0855°W |
| Geography | |
&sq=&lang=&file=File:Wales_relief_location_map.jpg)  Black Mountain Herefordshire, England / Brecknockshire, Wales | |
| Parent range | Black Mountains |
| OS grid | SO255350 |
| Topo map | OS Landranger 161 |
| Climbing | |
| Easiest route | The Cat's Back |
| Name | Grid ref | Height | Status |
|---|---|---|---|
| Black Mountain South Top | SO267323 | 637 metres (2,090 ft) | Nuttall |
The Black Mountain (Welsh: Twyn Llech), is a mountain in the Black Mountains. It is the only Marilyn to fall exactly on the Welsh–English border, Powys and Herefordshire. Its parent peak, Waun Fach, lies to the west.