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Road cycling routes

Cwmorthin Falls – Stwlan Dam loop from Maentwrog

Road cycling routes

Cwmorthin Falls – Stwlan Dam loop from Maentwrog

Moderate

22

riders

Cwmorthin Falls – Stwlan Dam loop from Maentwrog

01:55

32.8km

680m

Road cycling

Moderate road ride. 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: November 3, 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 13.1 km for 291 m

Waypoints

A

Start point

Parking

124 m

Coed Caersaeson

Forest

2

558 m

Llyn Trawsfynydd Visitor Centre

Highlight • Cafe

Cafe/restaurant and fishing centre at the lake. Open Thurs-Sun 8-2:30

Tip by

3

11.0 km

View from Pen Cefn Road

Highlight • Viewpoint

4

12.2 km

Lakeside Café

Highlight • Cafe

A good place to stop for a break. We particularly enjoyed the lamb burger with mint sauce.
With a bit of luck (or knowledge of the timetable) you can also see the historic steam train steaming past.

Translated by Google •

Tip by

5

13.2 km

Cwmorthin Falls

Highlight • Viewpoint

Car park gets full up top so park sensibly park close to next car gives more space for others. Don’t park in front of gate as this is used by farmer Go Below and mountain/cave rescue. More parking available at bottom of hill.

Tip by

6

15.8 km

Stwlan Dam

Highlight • Lake

The climb up to the Llyn Stwlan Reservoir could well be the best-kept secret on British soil. It’s a 3km gravel road that averages at 10%, with spikes of 20%, en route to the impressive dam that forms the eastern edge of the reservoir

Tip by

7

21.1 km

Blaenau Ffestiniog Railway Station

Highlight • Historical Site

Small train station in the mountains - slate was once mined here - now a tourist attraction.

Translated by Google •

Tip by

8

21.4 km

Bridge Cafe

Highlight • Cafe

Excellent stop for fuelling the hungry cyclist - recommend the "Bikers and Hikers Breakfast"

Tip by

9

26.1 km

Pengwern Country House

Highlight • Mountain Hut

Wednesday... is live folk music night. Away from the crowds and beautiful walks right from the door.
And the bar serves home-made food, too.

Tip by

B

32.8 km

End point

Parking

Way Types & Surfaces

Way Types

21.7 km

6.31 km

4.46 km

223 m

< 100 m

Surfaces

31.7 km

488 m

395 m

291 m

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Elevation

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

Highest point (480 m)

Lowest point (10 m)

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Weather

Powered by Foreca

Today

Wednesday 11 November

9°C

2°C

0 %

Additional weather tips

Expect light wind and shifting conditions.

to get more detailed weather forecasts along your route

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