Carnedd Llewelyn
About Carnedd Llewelyn
Carnedd Llewelyn is the second highest mountain in Wales. The vast summit area is part of the wild Carneddau range, popular with wild campers.
Height & Prominence of Carnedd Llewelyn
Carnedd Llewelyn stands at 1064 metres (3491 feet) above sea level, according to Ordnance Survey data. Its topographic prominence is 614 metres, meaning it rises at least that far above the col connecting it to the nearest higher peak. Carnedd Llewelyn is part of the Carneddau. The OS grid reference is SH 683644, which you can use to locate the summit on any Ordnance Survey Explorer or Landranger map.
Carnedd Llewelyn carries the classifications of Hewitt, Nuttall, Marilyn.
Location & Nearest Towns
Carnedd Llewelyn is located in Wales, Gwynedd, within Snowdonia National Park. It sits in the Carneddau area.
For official access information and any seasonal restrictions, check the Snowdonia National Park authority.
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 Carnedd Llewelyn
Carnedd Llewelyn is a moderate walk that rewards careful planning. The summit sits at 1064m, 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 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.
Frequently Asked Questions
Is Carnedd Llewelyn one of the best mountains to climb in the UK?
Yes, Carnedd Llewelyn is considered one of the best mountains to climb in the UK thanks to its scenic routes, 1064m elevation, and moderate difficulty level.
What difficulty level is Carnedd Llewelyn?
Carnedd Llewelyn has a difficulty rating of Moderate. Various routes are available for different experience levels.
When is the best time to climb Carnedd Llewelyn?
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 Carnedd Llewelyn?
Carnedd Llewelyn stands at 1064m (3491ft) in Wales, Gwynedd. 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 Carnedd Llewelyn? These peaks are close by and worth exploring.
