Llyn Celyn northern uplands up Carnedd Llechwedd-llyfn: route map, distance and time
644 m · Barmouth to Betws-y-Coed and Bala
A hard mountain walk to the summit from Llyn Celyn north-shore public track.
Llyn Celyn northern uplands starts at about 325 m and gains 457 m over 7.2 km to 638 m on the track. The first 4 km are the easy part, averaging 4%. The steepest kilometre is the one ending at 5 km, which climbs 143 m at an average of 14%. The final 0.2 km eases to the top.
Llyn Celyn northern uplands at a glance
| Distance | 7.2 km one way, to the top |
|---|---|
| Ascent | 470 m |
| Climb on the track | 457 m up, 143 m down on the way |
| Start and top of the track | 325 m to 660 m (summit 644 m) |
| Steepest 500 m | About 17%, from 4.6 km |
| Steeper than 1 in 5 | 3% of the way |
| Time up | 2h 15m by Naismith's rule |
| There and back | 3h 40m, down the same way |
| Grade | Hard |
| Start | Llyn Celyn north-shore public track |
| Start grid reference | SH 861 410 |
| Summit grid reference | SH 857 444 |
| Parking | No checked car park for this start; find lawful parking nearby |
Llyn Celyn northern uplands map
The track from the start (green) to the summit (blue), with a marker at each kilometre.
Height profile and getting to the start
Near the start
From OpenStreetMap, within 2 km. Check opening times before you rely on them.
Download the Llyn Celyn northern uplands GPX
Ascent only: plan your way down. A planning track, not checked on the ground; it doesn't show safe scrambling moves. Track data © OpenStreetMap contributors (ODbL), heights from a terrain model.
Llyn Celyn northern uplands kilometre by kilometre
Height, climb and average gradient for each kilometre of the track, with a grid reference at the end of each one to check your position on the map.
| At | Height | Climb | Gradient | Grid ref |
|---|---|---|---|---|
| 1 km | 433 m | +108 m | 11% | SH 857 416 |
| 2 km | 494 m | +61 m | 6% | SH 862 424 |
| 3 km | 529 m | +35 m | 4% | SH 869 426 |
| 4 km | 473 m | -57 m | -6% | SH 875 432 |
| 5 km | 616 m | +143 m | 14% | SH 872 440 |
| 6 km | 620 m | +4 m | 0% | SH 866 446 |
| 7 km | 635 m | +15 m | 2% | SH 857 446 |
| 7.2 km | 638 m | +2 m | 1% | SH 857 444 |
How long Llyn Celyn northern uplands takes
| Pace | To the top | There and back |
|---|---|---|
| Brisk 6 km/h, 8 min per 100 m up | 1h 50m | 3h 0m |
| Steady (Naismith) 5 km/h, 10 min per 100 m up | 2h 15m | 3h 40m |
| Relaxed 4 km/h, 12 min per 100 m up | 2h 45m | 4h 30m |
Times leave out stops. Coming down the same way, the table counts the ascent once; steep descents on rough ground can be as slow as the climb.
- Today: sunrise 07:05, sunset 16:52. Start by 12:12 to be down before dark, allowing 3h 40m for the walk and an hour for stops.
- Tomorrow: sunrise 07:06, sunset 16:50. Start by 12:10 to be down before dark, allowing 3h 40m for the walk and an hour for stops.
Carnedd Llechwedd-llyfn summit weather for this route
There is no recent summit forecast cached for Carnedd Llechwedd-llyfn right now. The main Carnedd Llechwedd-llyfn page loads the live forecast when you open it. Open the live Carnedd Llechwedd-llyfn forecast.
Before you go, also check: MWIS Snowdonia forecast · Met Office mountain forecast.
About Carnedd Llechwedd-llyfn
More about Carnedd Llechwedd-llyfn, with the live forecast.
Challenges that include Carnedd Llechwedd-llyfn
More walks from Llyn Celyn north-shore public track
Routes in Peakify's guides that start within 500 m of this one, for another day from the same car park.
- Llyn Celyn northern uplands up Carnedd y Filiast
- Llyn Celyn via Carnedd y Filiast up Waun Garnedd-y-Filiast
In an emergency
Call 999, ask for the police and then mountain rescue. Give your location (the start is at SH 861 410, the summit at SH 857 444), what happened and how many are in your group. If you have no signal for a call, a text to 999 works once you have registered your phone with emergencySMS: text "register" to 999 before you go.
Llyn Celyn northern uplands: questions and answers
How far is Llyn Celyn northern uplands?
Llyn Celyn northern uplands is 7.2 km one way to the summit of Carnedd Llechwedd-llyfn, with 470 m of ascent. There and back by the same way is about 14.4 km.
How long does Llyn Celyn northern uplands take?
About 2h 15m to the summit of Carnedd Llechwedd-llyfn and 3h 40m there and back by Naismith's rule (5 km/h plus 10 minutes per 100 m of ascent), before stops. A relaxed group takes nearer 4h 30m for the round trip.
How steep is Llyn Celyn northern uplands?
The steepest 500 m averages about 17%, starting 4.6 km from the start, and 3% of the way is steeper than 1 in 5. Llyn Celyn northern uplands climbs 457 m in all on the track.
Where do you park for Llyn Celyn northern uplands?
Llyn Celyn northern uplands starts from Llyn Celyn north-shore public track. The grid reference is SH 861 410. No checked car park for this start; find lawful parking nearby
Is Llyn Celyn northern uplands suitable for beginners?
Not as a first mountain. Peakify grades it Hard: steep, rough ground where a slip matters. Build up on an easier route first.
What time should I start Llyn Celyn northern uplands today?
By 12:12 at the latest. Sunset on Carnedd Llechwedd-llyfn today is 16:52, Llyn Celyn northern uplands takes about 3h 40m there and back, and that leaves an hour for stops. Start earlier in winter or if the forecast turns.
Is there a GPX for Llyn Celyn northern uplands?
Yes. Download it from this page. It is an ascent-only planning track from the start to the summit, plotted on OpenStreetMap paths and not checked on the ground.