Moelwyn Mawr, Moelwyn Bach & Moel-yr-hydd

Moelwyn Mawr, Moelwyn Bach & Moel-yr-hydd

Date/Time: 01/11/2020 - 31/12/2021, 8:00 am - 5:00 pm Location: Tanygrisiau, Tanygrisiau

“Silent are the quarries now but the history screamed a thousand voices as I wandered through the old workings”.

This magnificent Moelwyns horseshoe walk takes in the 3 peaks of Moelwyn Mawr, Moelwyn Bach and Moel-yr-hydd. It takes in reservoirs, ridges, Rhosydd Quarry, Cwmorthin Quarry with a slate history that has long stood still and silent.

The Moelwyns yield some of the finest walking in Snowdonia and will take you back in time, to when from 1810 the area above Blaenau Ffestiniog and Tanygrisiau was buzzing with hundreds of slate workers.

Whilst much of the area has been scarred by the history of the quarry workings you will not help but be drawn into the uniqueness of the area and all that it has to show.

Note: A minimum of 4 people is required for a walk to take place


“Silent are the quarries now but the history screamed a thousand voices as I wandered through the old workings”.

Moelwyns Ascent

We start just above the village of Tanygrisiau, steeped in mining history via the Llyn Stwlan reservoir access road and continue for some 3km south west with the imposing cliffs and crags Clogwyn yr Oen and Clogwyn yr Bustach above us. As we head up we have panoramic views across towards the Rhinogs and the Arenig range of mountains.

We arrive at the impressive Llyn Stwlan reservoir which was a small corrie lake until the late 1950s when the dam was built as part of the Ffestiniog Hydro-Electric pumped storage scheme.

We contour around the west side of the lake to reach the saddle Bwlch Stwlan. Then heading south at first we ascend steeply on a quarried/slate path to gain the summit plateau before heading south west for a 150m to reach the summit of Moelwyn Bach 710m.

From here we can see our route over the Craigysgafn ridge which connects Moelwyn Bach and Moelwyn Mawr. After a rest stop at the summit we retrace our steps back down to the saddle at Bwlch Stwlan. The ridge is fairly straightforward although there are a couple of small sections which give some exposure. Once over the ridge we have the easy task of following the grassy slope to the summit of Moelwyn Mawr  770m.

From the summit we can again see our route which descends steeply at first towards the old workings of Rhosydd Quarry. Once we reach the plateau we have less than 100m to climb to summit our 3rd and final peak of the day Moel-yr-hydd 648m.

Moelwyns Descent

Retracing our steps back to the plateau we then head north through Rhosydd quarries, taking our time to immerse ourselves in the history of the area. Our final leg of the walk takes us through the quarry workings of Cwmorthin and via Llyn Cwmorthin before arriving back in Tanygrisiau.





Walking Distance

12.2 Km / 7.6 Miles

We want everyone to enjoy their challenge and reach the summit in their own time so will walk at a pace suitable for the whole group. It is important that the group stays together with the leader/s. Depending on numbers taking part groups may be split into smaller groups of similar pace and ability.

Please note that, although we would love to, we can’t promise clear skies on this day!

Registration fee – £35 per person

You can secure your place with a £10 deposit. The balance will be due 8 weeks before the date of the event.

Qualified, experienced mountain leader with you all the way (ratio 1:8 or less)

Kit and Training advice

Friendly support on the end of the phone/email to answer any questions running up to your event

Information Pack 2-4 weeks before

This is an example itinerary, exact details will be sent to you in your event information pack 2 weeks before the event.

8.30am – Meet your Breese Adventures leader for your briefing at Lakeside Cafe Car Park, Tanygrisiau, Blaenau Ffestiniog LL41 3TP.

9am – Start walking

11.30am – Reach the summit Moelwyn Bach

1pm -Reach the summit of Moelwyn Mawr

2pm – Reach the summit Moel-yr-Hydd

4pm – Arrive back at the start.

If you are 14 or over, of a reasonable fitness and can walk 3-4 hours comfortably with some hill walking experience then this challenge is for you.

A reasonable head for heights would be good.

If you are not sure about fitness levels but are committed to put in some training over the next few months we have specially designed training plans to help you along the way. We recommend the ‘Challenging’ training plan for this event.

All walkers should be 14 and over and any under 18’s should be accompanied by a parent or guardian.

Sorry, no dogs.

Various dates are available.

To find out more please click on DATES button to check using the calendar.

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