Plynlimon
About Plynlimon
Plynlimon, or Pumlumon Fawr, is the highest point of central Wales and the source of the rivers Severn and Wye. The boggy summit plateau is part of the Cambrian Mountains.
Height & Prominence of Plynlimon
Plynlimon stands at 752 metres (2467 feet) above sea level, according to Ordnance Survey data. Its topographic prominence is 612 metres, meaning it rises at least that far above the col connecting it to the nearest higher peak. Plynlimon is part of the Cambrian Mountains. The OS grid reference is SN 789869, which you can use to locate the summit on any Ordnance Survey Explorer or Landranger map.
Plynlimon carries the classifications of Hewitt, Nuttall, Marilyn.
Location & Nearest Towns
Plynlimon is located in Wales, Ceredigion. It sits in the Cambrian Mountains area. The nearest towns and villages include Ponterwyd, Aberystwyth, Nant-y-moch Reservoir, where you can find accommodation, pubs, and supplies before or after your walk.
For official access information and any seasonal restrictions, check the relevant national park authority.
Interesting Facts
- Source of both the River Severn and River Wye
- Highest point of the Cambrian Mountains
- The rivers Severn and Wye both rise within metres of each other on its slopes
- Name 'Pumlumon' means 'five beacons' in Welsh
- Remote moorland walking with excellent views of mid-Wales
Safety Tips
Always check forecasts before setting out. Summit conditions differ dramatically from valley level.
Carry map, compass/GPS, water, food, first aid, whistle, torch, and waterproofs.
Tell someone your route and return time. Stick to marked paths. Be ready to turn back.
Ask for Police, then Mountain Rescue. Know your grid reference.
On the Mountain: Walking Plynlimon
Plynlimon is a moderate walk that rewards careful planning. The summit sits at 752m, where conditions can feel distinctly different from the valley — wind speeds are typically 30–50% stronger above 800m, and the temperature drops roughly 1°C for every 100m of ascent. In cloud, the cairn at the top can be hard to spot, so keep a map and compass to hand even on well-marked paths.
After your walk, the nearest village — Ponterwyd — is a good place for a pint and a debrief. For detailed route descriptions and trip reports from other walkers, Walkhighlands is an excellent resource.
Nearby Dining
- Aberystwyth town
- Ponterwyd pub
Frequently Asked Questions
Is Plynlimon one of the best mountains to climb in the UK?
Yes, Plynlimon is considered one of the best mountains to climb in the UK thanks to its scenic routes, 752m elevation, and moderate difficulty level.
What difficulty level is Plynlimon?
Plynlimon has a difficulty rating of Moderate. Various routes are available for different experience levels.
When is the best time to climb Plynlimon?
The best season is Spring to Autumn. Summit temperatures are typically 5–10°C colder than the valley, and conditions can change rapidly.
Why Visit Plynlimon?
Plynlimon stands at 752m (2467ft) in Wales, Ceredigion. Classified as a Hewitt and Nuttall and Marilyn, it is a rewarding destination for hikers, climbers, and photographers.
Browse our UK mountains directory to discover more peaks, or see all mountains A–Z.
Nearby Peaks to Explore
Looking beyond Plynlimon? These peaks are close by and worth exploring.
