
Wales · United Kingdom
Hirwaun to Beacons Reservoir
A4059Hirwaun to Beacons Reservoir
A driver’s favourite that climbs north out of Hirwaun past the Beacons Reservoir, bend after bend under the high peaks of the Brecon Beacons.
The A4059 climbs north from Hirwaun into the Brecon Beacons, twisting up past the Beacons Reservoir beneath the high peaks with sweeping views the whole way. A driver’s favourite, enjoy the bends within the limit, and watch for sheep and for walkers near the reservoir.
Scenery
MountainMoorland
Best seasons
SpringSummerAutumn
In these collections
In these Grand Tours
Where it runs9.6 mi · point to point
HirwaunStart · Wales
Beacons ReservoirEnd · Wales
Navigate to the start: Apple Maps · Google Maps
Character
Corners26bends
Tightness5of 10
Max gradient9%≈ 1-in-11
Climb269 mtotal ascent
Summit451.1 mhighest point of the line · 1,480 ft
Corners
busiest around mile 10Elevation
under 4%4–8%over 8%206.1 – 451.1 mPoints of interest3 stops
- Lamb HotelFood and drink2.3 mi in
- Twyn-Garreg-WenViewpoint8.7 mi in
- Hirwaun Iron WorksLandmark0.3 mi in
Hazards
- Sheep on the road
- Walkers near the reservoir
Sources
“This stunning mountain road which begins by crossing the top of Beacon Reservoir's Dam, climbs quickly leaving gentle arable landscape and moving onto exposed starker green moorland.”
Verified route: mapped from real road geometry and fact-checked by a human editor. How roads get checked
Driving the Hirwaun to Beacons Reservoir: quick answers
How long does it take to drive the Hirwaun to Beacons Reservoir?
Hirwaun to Beacons Reservoir runs 9.6 miles (15.4 km) and takes about 19 min to drive without stops.
How difficult is the Hirwaun to Beacons Reservoir to drive?
We rate it moderate: 26 corners, a maximum gradient of 9%, and a tightness of 5 out of 10.
When is the best time to drive the Hirwaun to Beacons Reservoir?
Spring and Summer and Autumn are best.
Nearby roads
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Hirwaun to Beacons Reservoir
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