Abergwesyn Pass – Llyn Brianne Dam loop from Beulah

Abergwesyn Pass – Llyn Brianne Dam loop from Beulah

Hard

5.0

(2)

riders

Abergwesyn Pass – Llyn Brianne Dam loop from Beulah

04:49

77.2km

1,290m

Road cycling

Hard road ride. Very good fitness required. Some segments of this route may be unpaved and difficult to ride. The starting point of the route is right next to a parking lot.

Last updated: August 27, 2026

Tips

The surface for a segment of your route may not be suitable

Some segments of your route comprise a surface that may not be suitable for your chosen sport.

After 32.4 km for 377 m

Waypoints

Start point

Parking

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12.0 km

Abergwesyn Pass

Highlight • Viewpoint

Absolutely beautiful, even in the cold and wet!

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13.1 km

Devil's Staircase Climb (Abergwesyn)

Highlight (Segment) • Trail

Deep in the wilderness lies a hill that needs no introduction, the Devil’s Staircase, and it’s the opportunity to tackle this beast that will lure many to sign up for …

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14.7 km

Devil's Staircase Climb from Llyn Brianne Reservoir

Highlight (Segment) • Viewpoint

Confronting the Devil's Staircase northbound from near Llyn Brianne reservoir is tackling one of Wales's most infamous climbs, famed for its savage steepness and remote beauty. Prepare for an immediate, …

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24.0 km

Carreg Clochdy Viewpoint Over Llyn Brianne

Highlight • Viewpoint

Stop for a photo or a picnic, an amazing view over Llyn Brianne you'll wonder if you left Wales and cycled to Norway

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27.7 km

View of Llyn Brianne

Highlight • Lake

Llyn Brianne is a beautiful place for a bike ride. Enjoy the views.

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30.0 km

Llyn Brianne Dam

Highlight • Viewpoint

Stunning spot and worth the extra few hundred metres detour if the plan is otherwise to simply ride around the reservoir.

You'll find brilliant gravel and forestry roads on one …

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32.6 km

Dinas

Forest

43.9 km

View of Cynghordy Viaduct

Highlight (Segment) • Monument

On the road from Llanerchindda to Cynghordy in the distance looms this fantastic Viaduct. It was totally unexpected find on my ride. The road takes you under the Viaduct, where …

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59.1 km

View of the Hills

Highlight • Viewpoint

77.2 km

End point

Parking

Way Types & Surfaces

Way Types

76.2 km

514 m

377 m

245 m

Surfaces

68.0 km

8.67 km

377 m

245 m

Elevation

Nothing selected – click and drag below to see the stats for a specific part of the route.

Highest point (480 m)

Lowest point (110 m)

Weather

Tuesday 20 October

9°C

4°C

70 %

Additional weather tips

Max wind speed: 31.0 km/h

to get more detailed weather forecasts along your route

Comments

February 1, 2025,Ride to Llyn Brianne Reservoir via Devils Staircase 😈 - Stunning 😍

It was a cold start and never getting above 4 degrees, but meaning a super clear day, with winter sun on my back and ice, lots of ice 🧊 on the roads. The weather shows off the absolutely stunning landscape 😍. A ride to test the ankle, a lot of climbing 12 named, and plenty of lumps in between. I …