Snowdonia Slate Trail 4th Stage Tanygrisiau to Cwm Penmachno

Event Details

Date(s) - 17/03/2018
All Day

01248 853662

Event Description

Today we are walking from Tanygrisiau to Cwm Penmachno a distance of 25 Kms and 700 mts of ascent, to give a total walking time of 9 hours.

Meet 8.20 (to leave at 8.30), coming from Llanwrst at the lay-by on the A470 just before the Waterloo Bridge (it has a small post box) in Betwys Y Coed,

(GR SH798558)


We will leave surplus cars at the lay by in Betwys and if we are a group of less than 10 we will take 4 cars to Cwm Penmachno, leave 2 cars there and the other 2 cars will take the group to Tanygrisiau. We should be walking by 9.30. On the return, the 2 cars at Cwm Penmachno will take the group to Tanygrisiau. I think there could be limited parking at Cwm Penmachno, it would be good to park as near as possible to where we come down from the mountain.

The Walk;

From Tanygrisaiau, Blaenau/Llan Festiniog, Cwm Cynfal gorge, Migneint, Manod quarry.  The description says “sometimes boggy”!!


Meet 8.20 at the lay-by in Betwys Y Coed  LL24 0SG


There is a link to the Route Maps and Route Description here;

One man has completed the whole trail and he has written about his adventures.

There is a link to another website which gives more of the historical background to the area;




Location Details: Betwys y coed


Address:Betwys Y Coed
City/Town:Betwys Y Coed
Postcode:LL24 0SG
Country:United Kingdom

Grid Ref


Alun Ward

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