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Mountain biking trails

Llyn Brianne Dam – Llyn Brianne Dam Crossing loop from RSPB Gwenffrwd-Dinas

Routes

Mountain biking trails

Llyn Brianne Dam – Llyn Brianne Dam Crossing loop from RSPB Gwenffrwd-Dinas

Hard

riders

Llyn Brianne Dam – Llyn Brianne Dam Crossing loop from RSPB Gwenffrwd-Dinas

05:54

61.8km

1,340m

Mountain biking

Hard mountain bike ride. Very good fitness required. Suitable for all skill levels. The starting point of the route is right next to a parking lot.

Last updated: June 19, 2026

Tips

Includes a very steep uphill segment

You may need to push your bike.

After 9.42 km for 1.01 km

Waypoints

Start point

Parking

Get Directions

1.44 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 …

Tip by

2.28 km

Llyn Brianne is a spectacular reservoir at almost 300m (990ft) above sea level. It is Wales second largest reservoir by volume and is contained by a 91m (300ft) stone-built dam, which is the largest of its kind in Europe.

Tip by

12.9 km

Capel Soar y Mynydd

Highlight • Religious Site

Capel Soar Y Mynydd is the most remote chapel in Wales. An invaluable spot to find some shelter on longer trips!

Tip by

20.4 km

Tywi Forest

Forest

30.7 km

Mynydd Tywi (Pen y Maen North Top)

Highlight • Summit

Mynydd Tywi (Pen y Maen North Top) 548m P90 (1798ft)
TP4493 - Black Lake S1580
Welsh Dewey

Translated by Google •

Tip by

36.9 km

Cwm Berwyn

Highlight (Segment) • Viewpoint

Nice little section of fire road through managed forest. Good surface, I managed on 33mm tyres. Some good log piles for photos! Lovely view behind you after you climb out of the trees.

Tip by

60.5 km

Dinas

Forest

60.7 km

RSPB Gwenffrwd-Dinas Nature Reserve

Highlight • Forest

This charming RSPB site is not far from Llyn Brianne and is home to Twm Sion Cati's cave. You'll find a great circular footpath running nearby the river, boasting beautiful …

Tip by

61.8 km

End point

Parking

Way Types & Surfaces

Way Types

24.7 km

15.5 km

12.4 km

9.17 km

< 100 m

Surfaces

31.1 km

16.5 km

12.4 km

1.81 km

Elevation

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

Highest point (520 m)

Lowest point (130 m)

Weather

Friday 3 July

20°C

13°C

25 %

Additional weather tips

Max wind speed: 22.0 km/h

to get more detailed weather forecasts along your route

Comments

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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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Llyn Brianne Dam – Llyn Brianne Dam Crossing loop from RSPB Gwenffrwd-Dinas

Llyn Brianne Dam

Llyn Brianne Dam Crossing

Capel Soar y Mynydd

Mynydd Tywi (Pen y Maen North Top)

Cwm Berwyn

RSPB Gwenffrwd-Dinas Nature Reserve

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