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Bwlch-y-Groes from Lake Vyrnwy

3
3.0
1 review/story | Elevation profile | 0 photos
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Elevation profile Bwlch-y-Groes from Lake Vyrnwy

Statistics

Difficulty points 237
Length 6.3 km
Average gradient 4.7%
Steepest 100 metres 16.1%
Total ascent 300 m

Short recap

Beautiful scenery
1 hairpin turn
#23 toughest climb of Powys
#57 most elevation gain of Wales
#47 longest climb of Wales
#62 average steepest climb of Powys
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Bwlch-y-Groes from Lake Vyrnwy is a climb in the region Powys. It is 6.3 km long and bridges 300 m of vertical ascent with an average gradient of 4.7%, resulting in a difficulty score of 237. The top of the ascent is located at 546 m above sea level. Climbfinder users shared 1 review/story of this climb and uploaded 0 photos.

3.0 by Willyx
IMPORTANT. The road around the west side of Lake Vyrnwy is currently closed (expected to reopen Spring 2026) so there is no access to the start of the climb. I rode down from Bwlch y Groes and back up. The first 2.5 km of the climb is the steepest and has short sections where the road surface is degraded to just gravel, although still rideable. The upper part of the climb is a delight as the gradient lessens significantly, the surface improves, and the route has a wild and desolate feel. Th... read more

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Reviews (1)

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Willyx
Willyx
8 Mo 3.0

IMPORTANT. The road around the west side of Lake Vyrnwy is currently closed (expected to reopen Spring 2026) so there is no access to the start of the climb. I rode down from Bwlch y Groes and back up. The first 2.5 km of the climb is the steepest and has short sections where the road surface is degraded to just gravel, although still rideable. The upper part of the climb is a delight as the gradient lessens significantly, the surface improves, and the route has a wild and desolate feel. The road surface does suffer from water seepage off the mountain side so could be icy in cold weather. It's an interesting climb and a nice contrast to the other two routes up to Bwlch y Groes.

Dashboard

Climbing times

7 km/h 00:54:18
11 km/h 00:34:33
15 km/h 00:25:20
19 km/h 00:20:00

Road surface condition

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Traffic

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Frequently Asked Questions

Bwlch-y-Groes can be cycled from 3 sides. Bwlch-y-Groes from Llanymawddwy is the most popular side, but the summit can also be reached via Bwlch-y-Groes from Llanuwchllyn & Bwlch-y-Groes from Lake Vyrnwy.

You don't need special gearing for Bwlch-y-Groes from Lake Vyrnwy. The slope isn't long or steep enough to require much shifting down. You can conquer this climb on power alone. However, a compact gearing system with a smallest front chainring of 34 and largest rear sprocket of 28 or 30 is always nice if you enjoy cycling uphill. This helps maintain a smooth cadence.

Bwlch-y-Groes from Lake Vyrnwy is a 3rd-category climb. Almost anyone can handle this climb, as long as you have a bike with climbing gears. If you have little training, you will probably need to shift down significantly. For experienced riders, Bwlch-y-Groes from Lake Vyrnwy is not a problem.

Bwlch-y-Groes from Lake Vyrnwy is 6.3 km long.

The average gradient of Bwlch-y-Groes from Lake Vyrnwy is 4.7%.

Bwlch-y-Groes from Lake Vyrnwy has a steepest segment with an average gradient of 16.1%.

The summit of Bwlch-y-Groes from Lake Vyrnwy is at 546 m.

At a slow pace of 7 km/h, it takes about 00:54:18 to climb Bwlch-y-Groes from Lake Vyrnwy. At 11 km/h the time is 00:34:33, and at 15 km/h 00:25:20. For the fastest cyclists, 00:20:00 is an achievable time.

Bwlch-y-Groes from Lake Vyrnwy is located in the region Powys in Wales.

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