Plynlimon and Wye Source Via

Nant Y Moch

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Own Route Map & Description

How To Get There

The mountain and source of the Wye is remote but accessible from anywhere in the UK. You can use public transport, which some of us have done. Again see Vaga Story and these links to public transport.


Llandrindod to Rhayader & Llangurig Bus
This service is through to Llanidloes but stops at Rhayader and Llangurig. We have walked through to the source from here. It's a good walk and or hike that lends you an appreciation for the upper Wye. Buses back are from Llangurig or Rhayader.

Llandrindod to Aberystwyth X47
This service is through to Aberystwyth but is not as frequent. It will though take you closer to the source. A series of camps nearer to your hike into the Massif might be a good idea. It will introduce the area to you and be a great night out also.

Of course, bus rides back the other way depart from Aberystwyth. You need to be looking at the X47


General Directions - Click for map

Head for Ponterwyd. Turn right at Ponterwyd. Follow road through to Nant Y Moch Reservoir - keep bearing right and head for the North Eastern fringe of the Reservoir. Look for a slight flat grass verge prior to a cattle grid and fence. Park here. The route up is along the track opposite your car parking space.

Walk Guide

There is a service track leading up to Llyn Llygad reservoir. OS Explorer 213. Grid Ref 768874. It starts as a subtle incline around a bend to the left. Follow the track for 2 miles until you see the reservoir. About 200 meters before the reservoir turn right straight up into the mountain towards a saddle marked on the OS map at 788874. It’s a rocky climb and only for reasonably fit and experienced hill walkers. This one though is for the views and for that close up with the Reservoir. From this vantage point you’ll see the Afon Hyddgen Valley and the Hengwm Valley with Cadair Idris beyond. Spectacular! It’s a bit harder going than other routes to the summit of Plynlimon and the source but worth it for the visual on a good or dramatically stormy day like ours.

Part Visual Guide

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Gear To Pack

Firstly, weather up here is unpredictable in the latter part of the year specifically. It's the largest watershed in Wales and so it gets wet. So, Pack a good water proof set. That's a jacket and trousers - if in summer a shell. Make sure also you have a good rain cover for your ruck sack (they're not totally waterproof and the lids have been known to drown). Inside pack a good map of the area and a warm insulating layer depending on the time of year.

Additional contents and kit: Water - Warm Drink - Food or Good Energy Snack - Headtorch (You Never Know) - Whistle - First Aid and Mobile Phone. Additional kit may include Camera - batteries - Tripod If Your Big Into Home Movie. Youtubers Won't Ever Forget!

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