Black Mountain Pass
A4069Llangadog to Brynamman · Wales
Distance12.1mi · 19 km
Drive time27 minon the road
DifficultyDemanding
MountainMoorland
A sinuous ribbon over the western Brecon Beacons, all open moor and big sky.
The A4069 climbs out of Llangadog onto the bare flank of the Black Mountain, threading a sequence of open, cambered curves past Herbert's Quarry before dropping to Brynamman. With almost no walls or hedges, the moor falls away on every side and the corners reveal themselves at distance. Sheep roam freely and summits can be blind, so keep your speed to what you can see and enjoy the rhythm of the road.
Where it runs
LlangadogStart · Wales
BrynammanEnd · United Kingdom
Character
Corners30bends
Tightness7of 10
Max gradient12%≈ 1-in-8
Hairpins1tight bends
Climb455 mtotal ascent
Summit492 mhighest point · 1614 ft
SpringSummerAutumn
Elevation
448 m rangeKnow before you go
- Open moorland with roaming livestock
- Blind summits
- Exposed to wind and fog
Along the road
- parking Herbert's Quarry
As seen on screen
Top Gear
Sources
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Nearby roads
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