Lanthwaite via Gasgale Gill and Coledale Hause up Grasmoor: route map, distance and time
852 m · Cumbria
Grasmoor is the highest fell in the north-western Lakes, a massive block of a mountain rising above Crummock Water with a broad summit plateau.
A hard mountain walk to the summit from Lanthwaite Wood National Trust car park.
Lanthwaite via Gasgale Gill and Coledale Hause starts at about 98 m and gains 818 m over 7.5 km to 836 m on the track. The first 4 km are the easy part, averaging 7%. The steepest kilometre is the one ending at 7 km, which climbs 186 m at an average of 19%. The final 0.5 km eases to the top. About 15% of the way is steeper than 1 in 5, so expect hands-on-knees going and a slow descent.
Lanthwaite via Gasgale Gill and Coledale Hause at a glance
| Distance | 7.5 km one way, to the top |
|---|---|
| Ascent | 820 m |
| Climb on the track | 818 m up, 80 m down on the way |
| Start and top of the track | 98 m to 845 m (summit 852 m) |
| Steepest 500 m | About 20%, from 5.9 km |
| Steeper than 1 in 5 | 15% of the way |
| Time up | 2h 50m by Naismith's rule |
| There and back | 4h 20m, down the same way |
| Grade | Hard |
| Start | Lanthwaite Wood National Trust car park, CA13 0RT |
| Start grid reference | NY 148 214 |
| Summit grid reference | NY 174 203 |
| Parking | Lanthwaite Wood National Trust car park |
Lanthwaite via Gasgale Gill and Coledale Hause 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 Lanthwaite via Gasgale Gill and Coledale Hause 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.
Lanthwaite via Gasgale Gill and Coledale Hause 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 | 118 m | +20 m | 2% | NY 155 218 |
| 2 km | 180 m | +62 m | 6% | NY 161 216 |
| 3 km | 287 m | +107 m | 11% | NY 166 211 |
| 4 km | 379 m | +92 m | 9% | NY 174 215 |
| 5 km | 504 m | +125 m | 12% | NY 184 213 |
| 6 km | 645 m | +142 m | 14% | NY 186 209 |
| 7 km | 831 m | +186 m | 19% | NY 179 203 |
| 7.5 km | 836 m | +5 m | 1% | NY 174 203 |
How long Lanthwaite via Gasgale Gill and Coledale Hause takes
| Pace | To the top | There and back |
|---|---|---|
| Brisk 6 km/h, 8 min per 100 m up | 2h 20m | 3h 35m |
| Steady (Naismith) 5 km/h, 10 min per 100 m up | 2h 50m | 4h 20m |
| Relaxed 4 km/h, 12 min per 100 m up | 3h 30m | 5h 25m |
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 07:49, sunset 18:06. Start by 12:46 to be down before dark, allowing 4h 20m for the walk and an hour for stops.
- Tomorrow: sunrise 07:51, sunset 18:03. Start by 12:43 to be down before dark, allowing 4h 20m for the walk and an hour for stops.
Grasmoor summit weather for this route
-
Marginal Today Monday 19 October
Moderate drizzle, up to 7°C at the summit, feeling as cold as -3°C, summit wind 38 mph gusting 47 mph, 39% chance of rain. Rated Marginal. Sunrise 07:49, sunset 18:06.
-
Marginal Tomorrow Tuesday 20 October
Moderate drizzle, up to 6°C at the summit, feeling as cold as 2°C, summit wind 27 mph gusting 34 mph, 99% chance of rain. Rated Marginal. Sunrise 07:51, sunset 18:03.
Best day of the next seven for Lanthwaite via Gasgale Gill and Coledale Hause: Monday 19 October, with summit gusts around 47 mph and a 39% chance of rain.
Hour-by-hour Grasmoor forecast · 14-day forecast · Is it safe to climb Grasmoor?
Before you go, also check: MWIS Lake District forecast · Met Office mountain forecast · Weatherline fell top conditions.
What to take today
- An insulated jacket, hat and warm gloves: it feels like -3°C on top.
- A waterproof jacket. It can rain on the tops in any forecast.
- A windproof layer, and poles for balance in gusts to 47 mph.
- Map and compass, and the skills to use them. A phone is a backup, not a plan.
- A head torch, food, water, a charged phone and a small first aid kit.
About Grasmoor
Grasmoor is the highest fell in the north-western Lakes, a massive block of a mountain rising above Crummock Water with a broad summit plateau. More about Grasmoor, with the live forecast.
On the lists: Wainwright, Hewitt, Nuttall, Marilyn, Birkett.
Extend the walk: tops near the summit
- Wandope (774 m), 1.5 km south-east
- Whiteless Pike (660 m), 1.5 km south
- Whiteside East Top (719 m), 1.7 km north
- Whiteside (707 m), 1.7 km north
- Crag Hill (839 m), 1.8 km east
- Sand Hill (756 m), 1.9 km north-east
Challenges that include Grasmoor
More walks from Lanthwaite Wood National Trust car park
Routes in Peakify's guides that start within 500 m of this one, for another day from the same car park.
- Lanthwaite via Gasgale Gill and Coledale Hause up Crag Hill
- Lanthwaite via Whiteside ridge up Grisedale Pike
- Lanthwaite via Whiteside ridge up Hopegill Head
- Lanthwaite via Gasgale Gill and Coledale Hause up Sail
- Lanthwaite via Gasgale Gill and Coledale Hause up Wandope
- Lanthwaite via Whiteside ridge up Whiteside
- Lanthwaite via Gasgale Gill and Coledale Hause up Sand Hill
- Lanthwaite via Whiteside ridge up Hobcarton Crag
- Lanthwaite via Whiteside ridge up Whiteside East Top
Other routes up Grasmoor
| Route | Distance | Ascent | Time up | Grade |
|---|---|---|---|---|
| Lanthwaite Green via Gasgale Gill | 5.5 km one way | 699 m | 2h 15m | Moderate |
| Cinderdale Common via Lad Hows | 2.7 km one way | 714 m | 1h 45m | Moderate |
| Braithwaite via Coledale Hause | 7.2 km one way | — | — | Hard |
| Buttermere via Whiteless Pike | 6.6 km one way | — | — | Hard |
In an emergency
Call 999, ask for the police and then mountain rescue. Give your location (the start is at NY 148 214, the summit at NY 174 203), 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.
Lanthwaite via Gasgale Gill and Coledale Hause: questions and answers
How far is Lanthwaite via Gasgale Gill and Coledale Hause?
Lanthwaite via Gasgale Gill and Coledale Hause is 7.5 km one way to the summit of Grasmoor, with 820 m of ascent. There and back by the same way is about 15.0 km.
How long does Lanthwaite via Gasgale Gill and Coledale Hause take?
About 2h 50m to the summit of Grasmoor and 4h 20m 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 5h 25m for the round trip.
How steep is Lanthwaite via Gasgale Gill and Coledale Hause?
The steepest 500 m averages about 20%, starting 5.9 km from the start, and 15% of the way is steeper than 1 in 5. Lanthwaite via Gasgale Gill and Coledale Hause climbs 818 m in all on the track.
Where do you park for Lanthwaite via Gasgale Gill and Coledale Hause?
Lanthwaite via Gasgale Gill and Coledale Hause starts from Lanthwaite Wood National Trust car park (postcode CA13 0RT). The grid reference is NY 148 214. Lanthwaite Wood National Trust car park
Is Lanthwaite via Gasgale Gill and Coledale Hause 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, such as Lanthwaite Green via Gasgale Gill.
What time should I start Lanthwaite via Gasgale Gill and Coledale Hause today?
By 12:46 at the latest. Sunset on Grasmoor today is 18:06, Lanthwaite via Gasgale Gill and Coledale Hause takes about 4h 20m there and back, and that leaves an hour for stops. Start earlier in winter or if the forecast turns.
Is there a GPX for Lanthwaite via Gasgale Gill and Coledale Hause?
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.