Routes

Planner

Features

Updates

App

Login or Signup

Get the App

Login or Signup

Login or Signup

Hiking trails & Routes

Moelwyn Mawr summit – Cwmorthin Slate Mill loop from Blaenau Ffestiniog

Hiking trails & Routes

Moelwyn Mawr summit – Cwmorthin Slate Mill loop from Blaenau Ffestiniog

Moderate

4.9

(9)

65

hikers

Moelwyn Mawr summit – Cwmorthin Slate Mill loop from Blaenau Ffestiniog

03:33

10.2km

560m

Hiking

Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels. The starting point of the route is accessible with public transport.

Last updated: May 26, 2026

Tips

Your route passes through protected areas

Please check local regulations for:

Parc Cenedlaethol Eryri

Waypoints

A

Start point

Bus stop

Get Directions

1

4.95 km

View of Llyn Stwlan Dam

Highlight • Viewpoint

In my opinion the best way to view the damn is be traversing the ridge of Craigysgafn from Moelwym Mawr to Moelwym Bach. Allowing you to take in the damn and surroundings area from many different vantage points

Tip by

2

5.03 km

Craigysgafn Summit

Highlight • Viewpoint

A small rocky summit on the ridge between Moelwyn Mawr, and Moelwyn Bach.

Translated by Google •

Tip by

3

5.58 km

Moelwyn Mawr summit

Highlight • Viewpoint

Moelwyn Mawr is a breathtaking peak that is surprisingly little-visited by most hikers. From the summit, you can see Cnicht’s ridge, Snowdon, Yr Aran, and Y Lliwedd. You can also observe 15 lakes nestled within the landscape.

Tip by

4

5.75 km

View of Moelwyn Bach and Trawsfynydd Lake

Highlight • Viewpoint

Looking south over Moelwyn Bach the view opens out to Trawsfynydd Lake with the misty mountains of (left to right) the Arans, Rhobell Fawr, Cader Idris and Y Garn.

Tip by

5

8.26 km

View of Llyn Stwlan and Moelwynion

Highlight • Lake

Take the Ffestiniog railway from Tan y Grisiau to Tan y Bwlch, then hike up the vale. Great views on the way.

Tip by

6

8.93 km

Cwmorthin Slate Mill

Highlight • Historical Site

Cwmorthin Slate Quarry is an impressive area, a magical hanging industrial valley above Tan y Grisiau that highlights Wales' industrial heritage with its massive works and ruins. It was in …

Tip by

7

9.14 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 …

Tip by

8

9.22 km

Rhaeadr Ogwen (Ogwen Waterfall)

Highlight • Waterfall

You can drive almost directly to the waterfall by car. The car park is a popular starting point for hikes, even higher up.

Translated by Google •

Tip by

B

10.2 km

End point

Bus stop

Way Types & Surfaces

Way Types

5.18 km

2.72 km

1.50 km

430 m

348 m

Surfaces

4.22 km

2.89 km

2.29 km

378 m

267 m

Sign up to see more specific route details

Sign up for free

Elevation

Elevation

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

Highest point (730 m)

Lowest point (180 m)

Sign up to see more specific route details

Sign up for free

Weather

Powered by Foreca

Saturday 4 July

19°C

13°C

-- %

Additional weather tips

Max wind speed: -- km/h

to get more detailed weather forecasts along your route

Comments

Want to know more?

Sign up for a free komoot account to join the conversation.

Sign up for free

Our route recommendations are based on thousands of hikes, rides, and runs completed by other people on komoot.

Navigate

Send to Phone

Save

Edit route

Download GPX

Move start point

Print

Share

Embed on a website

Report an Issue

Report restricted access

Nearby routes

4.8

9,155

Snowdon via Pyg and Miners' Track Loop

04:56h

12.3km

680m

4.9

1,520

Snowdon loop on the Watkin Path from Nant Gwynant — Snowdonia National Park

05:22h

13.3km

980m

4.8

972

Llyn Idwal loop from Ogwen Cottage — Eryri / Snowdonia National Park

01:32h

4.77km

200m

4.8

1,561

Snowdon via the Watkins path

05:17h

13.4km

980m

4.8

945

Snowdon Horseshoe

05:51h

12.4km

870m

4.7

985

Y Garn to Glyder Fach loop — Parc Cenedlaethol Eryri | Snowdonia National Park

04:21h

9.04km

850m

4.8

1,483

Llyn Idwal loop from Ogwen Cottage — Eryri (Snowdonia) National Park

01:11h

4.18km

100m

4.8

609

Cwm Idwal & Y Garn loop from Ogwen Cottage — Eryri / Snowdonia National Park

03:07h

7.35km

610m

4.7

1,092

Rhyd Ddu and Snowdon Ranger Paths Loop

06:27h

17.8km

1,060m

4.9

1,092

Moel Siabod and Daear Ddu Ridge Loop

04:59h

13.4km

770m

4.9

1,104

The Precipice Walk & Llyn Cynwch loop — Snowdonia National Park

01:31h

5.66km

70m

4.4

958

Around Llyn Padarn from Llanberis

02:23h

8.57km

150m