Nant Peris via Elidir Fawr up Carnedd y Filiast: route map, distance and time
821 m · Snowdonia
A hard mountain walk to the summit from Nant Peris public approach lane.
Nant Peris via Elidir Fawr starts at about 113 m and gains 874 m over 5.8 km to 792 m on the track. The first kilometre climbs 118 m. The steepest kilometre is the one ending at 3 km, which climbs 307 m at an average of 31%. The final 0.8 km eases to the top. About 42% of the way is steeper than 1 in 5, so expect hands-on-knees going and a slow descent.
Nant Peris via Elidir Fawr at a glance
| Distance | 5.8 km one way, to the top |
|---|---|
| Climb on the track | 874 m up, 189 m down on the way |
| Start and top of the track | 112 m to 890 m (summit 821 m) |
| Steepest 500 m | About 34%, from 2.8 km |
| Steeper than 1 in 5 | 42% of the way |
| Grade | Hard |
| Start | Nant Peris public approach lane, LL55 4UF |
| Start grid reference | SH 605 584 |
| Summit grid reference | SH 620 627 |
| Parking | Nant Peris park and ride car park; the postcode is approximate |
Nant Peris via Elidir Fawr 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 Nant Peris via Elidir Fawr 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.
Nant Peris via Elidir Fawr 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 | 231 m | +118 m | 12% | SH 606 592 |
| 2 km | 470 m | +239 m | 24% steep | SH 609 600 |
| 3 km | 777 m | +307 m | 31% steep | SH 611 609 |
| 4 km | 782 m | +5 m | 1% | SH 617 614 |
| 5 km | 795 m | +13 m | 1% | SH 623 620 |
| 5.8 km | 792 m | -3 m | 0% | SH 620 627 |
How long Nant Peris via Elidir Fawr takes
| Pace | To the top | There and back |
|---|---|---|
| Brisk 6 km/h, 8 min per 100 m up | 2h 10m | 3h 5m |
| Steady (Naismith) 5 km/h, 10 min per 100 m up | 2h 35m | 3h 45m |
| Relaxed 4 km/h, 12 min per 100 m up | 3h 10m | 4h 40m |
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.
Carnedd y Filiast summit weather for this route
There is no recent summit forecast cached for Carnedd y Filiast right now. The main Carnedd y Filiast page loads the live forecast when you open it. Open the live Carnedd y Filiast forecast.
Before you go, also check: MWIS Snowdonia forecast · Met Office mountain forecast.
About Carnedd y Filiast
More about Carnedd y Filiast, with the live forecast.
Challenges that include Carnedd y Filiast
More walks from Nant Peris public approach lane
Routes in Peakify's guides that start within 500 m of this one, for another day from the same car park.
- Nant Peris via the Afon Dudodyn up Elidir Fawr
- Elidir Fawr, Mynydd Perfedd and Foel-goch up Y Garn
- Nant Peris via Elidir Fawr up Mynydd Perfedd
- Nant Peris via Elidir Fawr up Foel-goch
Other routes up Carnedd y Filiast
| Route | Distance | Ascent | Time up | Grade |
|---|---|---|---|---|
| Marchlyn mountain-road approach | 3.7 km one way | 460 m | 1h 30m | Hard |
| Ogwen via Y Garn | 6.4 km one way | — | — | Hard |
In an emergency
Call 999, ask for the police and then mountain rescue. Give your location (the start is at SH 605 584, the summit at SH 620 627), 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.
Nant Peris via Elidir Fawr: questions and answers
How far is Nant Peris via Elidir Fawr?
Nant Peris via Elidir Fawr is 5.8 km one way to the summit of Carnedd y Filiast. There and back by the same way is about 11.6 km.
How steep is Nant Peris via Elidir Fawr?
The steepest 500 m averages about 34%, starting 2.8 km from the start, and 42% of the way is steeper than 1 in 5. Nant Peris via Elidir Fawr climbs 874 m in all on the track.
Where do you park for Nant Peris via Elidir Fawr?
Nant Peris via Elidir Fawr starts from Nant Peris public approach lane (postcode LL55 4UF). The grid reference is SH 605 584. Nant Peris park and ride car park; the postcode is approximate
Is Nant Peris via Elidir Fawr 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.
Is there a GPX for Nant Peris via Elidir Fawr?
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.