Llyn Brianne Dam – Abergwesyn Pass loop from Pwll Yr Hyddod
Llyn Brianne Dam – Abergwesyn Pass loop from Pwll Yr Hyddod
5
riders
Llyn Brianne Dam – Abergwesyn Pass loop from Pwll Yr Hyddod
03:27
53.1km
1,100m
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: May 28, 2026
Tips
The surface along some of this route may not be suitable
Some segments of your route comprise a surface that may not be suitable for your chosen sport.
After 0 m for 218 m
After 6.16 km for 377 m
After 53.0 km for 218 m
Waypoints
Start point
Parking
Get Directions
6.36 km
Dinas
Forest
8.90 km
Llyn Brianne Dam
Highlight • Viewpoint
You'll find brilliant gravel and forestry roads on one side of the reservoir and slick, smooth black tarmac on the other, the choice is yours.
Tip by
9.95 km
View of Llyn Brianne Reservoir
Highlight (Segment) • Lake
Tip by
15.0 km
Carreg Clochdy Viewpoint Over Llyn Brianne
Highlight • Viewpoint
Tip by
22.6 km
Devil's Staircase Climb from Llyn Brianne Reservoir
Highlight (Segment) • Viewpoint
Tip by
24.3 km
Devil's Staircase Climb (Abergwesyn)
Highlight (Segment) • Trail
Leaving Abergwesyn, rising gently through the isolation you reach a couple of bridges in the rocky valley then ahead the road disappears into the trees past a weathered sign warning of the upcoming perils.
Straight away the narrow surface pitches up to 25% as you grind your way into the eerie conifers to reach a left hand bend. The road levels a little here, allowing you to catch your breath, but then it’s straight into the next incredibly tough stretch, which ends with a sharp almost unrideable 30% right-hand bend.
After this it backs off a bit, but there’s still a good distance of very tough climbing before you can finally relax.
Tip by
26.9 km
Abergwesyn Pass
Highlight • Viewpoint
Tip by
42.3 km
View of Llyn Brianne
Highlight • Lake
Tip by
49.6 km
The Towy Bridge Inn
Highlight • Pub
Tip by
53.1 km
End point
Parking
Way Types & Surfaces
Way Types
52.2 km
408 m
379 m
122 m
Surfaces
40.5 km
11.7 km
786 m
122 m
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Elevation
Highest point (480 m)
Lowest point (120 m)
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Weather
Powered by Foreca
Wednesday 8 July
26°C
10°C
0 %
Additional weather tips
Max wind speed: 9.0 km/h
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Our route recommendations are based on thousands of hikes, rides, and runs completed by other people on komoot.
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