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Plynlimon and Nant-y-Moch Reservoir

Region - Cambrian Mountains

County/Area - Ceredigion

Author - Peter Lane

Length - 11.0 miles / 17.9 km

Ascent - 2200 feet / 667 metres

Grade - hard

Start - OS grid reference SN799841
Lat 52.441629 // Long -3.768327
Postcode SY23 3LE (approx. location only)
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Route Outline

Plynlimon is the highest point in mid-Wales and also the high plateau watershed from which two major rivers: the Severn and the Wye derive their source. A wild and barren place, its desolation belies its relative accessibility. This spectacular walk across barren wilderness affords panoramic views that more than rival Snowdonia, with the added bonus that practically nobody will be there to spoil your enjoyment of it. This walk is a serious undertaking suitable only for experienced hill walkers comfortable with finding routes across trackless wilderness. This route should not be attempted in poor visibility due to a lack of defined paths and landmarks on the high plateau. It is also recommended that the 1:25,000 Explorer map be used. The ground in this area can be boggy and treacherous, so poles are recommended for testing the ground ahead.

GPS Files - Notes

This GPS file is for private use only and is subject to copyright. It should not be used on other websites

GPS files do not show topography and dangerous terrain and should be used in conjunction with paper maps. Suitable maps are listed below. The preferred scale is 1:25000 especially in hilly and mountainous areas.

These walks have been published for use by site visitors on the understanding that Walking Britain is not held responsible for the safety or well being of those following the routes as described. It is worth reiterating the point that you should embark on a walk with the correct maps preferably at 1:25000 scale. This will enable any difficulties with route finding to be assessed and corrective action taken if necessary.

GPS files - right click or option-click the button and choose "Save As..." to download this file.

Maps Ordnance Survey Logo Anquet Maps Logo

Ordnance Survey Explorer 213Sheet Map1:25kBUY
Anquet OS Explorer 213Digital Map1:25kBUY
Ordnance Survey Landranger 135Sheet Map1:50kBUY
Anquet OS Landranger 135Digital Map1:50kBUY

It is recommended you take a map. The preferred scale is 1:25k.

Other walks nearby

Walk 1304 Plynlimon from Esteddfa Gurig - moderate - 5.0 miles/8.1 km

Walk 2048 Craig-y-Pistyll, Cambrian Mountains - moderate - 10.0 miles/16.3 km

Walk 3086 Pen y Garn from The Arch near Devil's Bridge - easy/mod - 6.8 miles/11.1 km

Walk 1705 Circular from Bont-goch (near Aberystwyth) - easy/mod - 4.5 miles/7.3 km

Walk 2736 Teifi Pools from near Strata Florida - easy/mod - 6.2 miles/10.1 km

Further Information

Stay Safe

Do enjoy yourself when out walking and choose a route that is within your capabilities especially with regard to navigation.

Do turn back if the weather deteriorates especially in winter or when visibility is poor.

Do wear the right clothing for the anticipated weather conditions. If the weather is likely to change for the worse make sure you have enough extra clothing in your pack.

Do tell someone where you are planning to walk especially in areas that see few other walkers.

Do take maps and other navigational aids. Do not rely on mobile devices in areas where reception is poor. Take spare batteries especially in cold weather.

Do check the weather forecast before leaving. The Met Office has a number of forecasts for walkers that identify specific weather risks.

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