Cul Beag and Cul Mòr
Hillwalking route up Cul Beag and Cul Mòr from Loch Lurgainn. A rough outing through Inverpolly’s lochans and forests linking the two summits.
Route outline
| Corbetts | ||||
| Ascent | 1650m (5410ft) | |||
| Distance | 16km (10m) | |||
| Time | 6:25hr* | |||
| Start/finish | Loch Lurgainn, Inverpolly Grid Ref : NC127089 | |||
| Terrain |
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| Nav |
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| Effort |
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| Scenery |
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A few miles north of Ullapool and Coigach, rugged Cul Beag and Cul Mòr sit above the lochan pitted lands of Inverpolly and Drumrunie forests.
Instead of bagging these peaks separately, this route combines them into one demanding hillwalking day, where elusive gems that would normally remain hidden, such as delightful woodland and sparkling beaches, can be discovered.
Although fine paths access the area, much of the terrain between the two Corbetts is rough and pathless.
Instead of bagging these peaks separately, this route combines them into one demanding hillwalking day, where elusive gems that would normally remain hidden, such as delightful woodland and sparkling beaches, can be discovered.
Although fine paths access the area, much of the terrain between the two Corbetts is rough and pathless.
Route description
1. Getting to Loch Lurgainn

Cul Beag above Loch Lurgainn
North of Ullapool, the A835 continues north-east through Coigach to Ledmore Junction. Around halfway between Ullapool and Ledmore Junction are a couple houses that make Drumrunie, immediately south of which a narrow unclassified road heads westwards towards Achiltibuie.
Turning onto this road, head for around 3km to Loch Lurgainn and then a further 2km above its eastern shore to just before the road turns westwards, where you should be able to see a path heading uphill on your right (east) - there was a sign here on my last visit warning of fire risk. If you've reached the cottage of Linneraineach, then you've gone too far !
Parking is a bit tricky - there are a couple of spaces close by - but no parking is permitted in passing places.
Turning onto this road, head for around 3km to Loch Lurgainn and then a further 2km above its eastern shore to just before the road turns westwards, where you should be able to see a path heading uphill on your right (east) - there was a sign here on my last visit warning of fire risk. If you've reached the cottage of Linneraineach, then you've gone too far !
Parking is a bit tricky - there are a couple of spaces close by - but no parking is permitted in passing places.
2. Cul Beag

Heading up Cul Beag
From the roadside, find the start of the stalker's path heading through some gorse bushes and uphill aiming for some tall old Scots Pine trees.
Follow this path around and behind the trees and continue to its highest point
, around 100m above the roadside and close to Lochan Fhionnlaidh.
Leave the path and head east aiming across some green lines in the otherwise brown heather-clad hillside.
As the incline steepens, a faint path forms, which wynds its way up to a small dip
in Cul Beag's northern spur at around c500m.
Upon reaching the dip, turn south and follow a path up loose gravel to Cul Beag's grass covered summit dome with a small cairn
marking the top. There are some precipitous drops to the west of the summit and superb views over Stac Pollaidh and Ben More Coigach.
If you simply wanted to hike up Cul Beag, then it's an about turn to re-trace your steps up. This would make for an ascent of 700m over a distance of 5km, estimated to take around 2:25hr.

Follow this path around and behind the trees and continue to its highest point
, around 100m above the roadside and close to Lochan Fhionnlaidh.
Leave the path and head east aiming across some green lines in the otherwise brown heather-clad hillside.
As the incline steepens, a faint path forms, which wynds its way up to a small dip
in Cul Beag's northern spur at around c500m.
Upon reaching the dip, turn south and follow a path up loose gravel to Cul Beag's grass covered summit dome with a small cairn
marking the top. There are some precipitous drops to the west of the summit and superb views over Stac Pollaidh and Ben More Coigach.

On Cul Beag's summit, looking to Ben More Coigach

On Cul Beag's summit, looking to Ben More Coigach
3. Lochan Dearg a' Chùil Mhoir

Lochan Dearg a' Chùil Mhoir
Return to the dip
on Cul Beag's northern spur, then turn north-east and begin to descend downhill into Gleann Laoigh. The drop is fairly steep and pathless, though is fairly straightforward keeping in the main to grassy lines cutting through thick heather.
Once in Gleann Laoigh, aim for the outflow of Lochan Dearg
, then cross it (I'm not sure what this would be like in spate, though I would guess possibly uncrossable) and then climb up the steep hillside ahead on grass and through a few ferns, aiming northwards and keeping to the right of some crags. There's a climb of around 200m before Lochan Dearg a' Chùil Mhòir comes into view, upon when turn north-east and aim for eastern end of this lochan.
Lochan Dearg a' Chùil Mhòir
is central to a wonderful 'lost valley' and has a soft sandy beach with intriguing views over to Stac Pollaidh.
on Cul Beag's northern spur, then turn north-east and begin to descend downhill into Gleann Laoigh. The drop is fairly steep and pathless, though is fairly straightforward keeping in the main to grassy lines cutting through thick heather.
Once in Gleann Laoigh, aim for the outflow of Lochan Dearg
, then cross it (I'm not sure what this would be like in spate, though I would guess possibly uncrossable) and then climb up the steep hillside ahead on grass and through a few ferns, aiming northwards and keeping to the right of some crags. There's a climb of around 200m before Lochan Dearg a' Chùil Mhòir comes into view, upon when turn north-east and aim for eastern end of this lochan.
Lochan Dearg a' Chùil Mhòir
is central to a wonderful 'lost valley' and has a soft sandy beach with intriguing views over to Stac Pollaidh.4. Cul Mor

Heading up to Creag nan Calman
After spending some time taking in the beauty of Lochan Dearg a' Chùil Mhòir and its surroundings, leave it and follow the Allt Lochan Dearg a' Chùil Mhòir upstream. A faint path can be found picking a route through heather and grass, though it disappears quite quickly.
After around 1km from leaving Lochan Dearg a' Chùil Mhoir, and shortly after where the burn turns northwards, the start of a grassy bank
on the left (west) can be see cutting a route though heather uphill. Follow the bank to around the 600m contour where a path can be picked up.
A visit to Creag nan Calman is worth the detour from the path - leave the path at 700m
and climb up rougher terrain onto the grass-covered dome of this minor summit
.
North of Creag nan Calman a drop on mixed terrain leads to a sandy bealach followed by a delightful climb up a gentle grass-covered slope onto a final bouldery section leading to Cul Mòr's summit
.
Views from Cul Mòr's summit trig point are outstanding and vast !

After around 1km from leaving Lochan Dearg a' Chùil Mhoir, and shortly after where the burn turns northwards, the start of a grassy bank
on the left (west) can be see cutting a route though heather uphill. Follow the bank to around the 600m contour where a path can be picked up. A visit to Creag nan Calman is worth the detour from the path - leave the path at 700m
and climb up rougher terrain onto the grass-covered dome of this minor summit
.
North of Creag nan Calman a drop on mixed terrain leads to a sandy bealach followed by a delightful climb up a gentle grass-covered slope onto a final bouldery section leading to Cul Mòr's summit
.

On Cul Mòr's summit, looking to Suilven and Canisp

On Cul Mòr's summit, looking to Suilven and Canisp
5. Return

Creag nan Calman with Cul Beag beyond
From Cul Mòr's summit, return to the bealach between it and Creag nan Calman. From the bealach, instead of heading back up Creag, take a path heading south-east - this path is the continuation of the path left at around 700m
, so follow it downhill, then re-trace your footsteps back to Lochan Dearg a' Chùil Mhòir
.
Return to Glenn Laoigh and cross the Allt Gleann Laoigh slightly downstream from earlier
, where you should be able to find some vague ATV tracks to follow. Aiming north-west, the ATV tracks become faint and as they do, simply aim west over heather between some rocky bluffs to meet with the southern tip of Loch an Doire Dhuibh
.
Pick up an old worn path, cross a burn (footbridge) and meet with some delightful woodland. Follow the old path above the woodland as it gradually turns south-west, making its way to Lochan Fhionnlaidh
from where you can re-trace your steps back to the roadside.

, so follow it downhill, then re-trace your footsteps back to Lochan Dearg a' Chùil Mhòir
.
Return to Glenn Laoigh and cross the Allt Gleann Laoigh slightly downstream from earlier
, where you should be able to find some vague ATV tracks to follow. Aiming north-west, the ATV tracks become faint and as they do, simply aim west over heather between some rocky bluffs to meet with the southern tip of Loch an Doire Dhuibh
.

Heading back to Gleann Laoigh
from where you can re-trace your steps back to the roadside.
Heading back to Gleann Laoigh
GPX downloads and maps
Paper maps:
OS Landranger 15
OS Explorer 439
Harvey Mountain Map, Assynt
Route profile
Weather forecasts
| Peak specific | YR.no |
| Met Office | |
| Regional | MWIS - Northwest Highlands |
| Windy.com | |
| Seasonal | |
| Midge forecast | |
Alternative and nearby routes
Cul Mòr from Knockan Crag | |
|
Hillwalking route to Cul Mòr from Knockan Crag. A short climb following a good stalker's path most of the way to the rocky summit. Peaks : 1 Corbett
Ascent : 720m (2360ft) Distance : 11km (7m) Time : 4hr* | |
Stac Pollaidh from Loch Lurgainn | |
|
Hillwalking route up Stac Pollaidh from Loch Lurgainn. A short, popular circuit on good paths, with scrambling needed to reach the true top. Peaks : 1 Fiona
Ascent : 575m (1890ft) Distance : 5km (3m) Time : 2hr* | |
Beinn an Eòin from Loch Lurgainn | |
|
Quiet Coigach hillwalk on Beinn an Eòin from Loch Lurgainn, with gentle ascent, deer-trods, sandstone crags and superb views over northern Coigach. Peaks : 1 Fiona/Graham
Ascent : 720m (2360ft) Distance : 10km (6m) Time : 3:45hr* | |
Suilven circuit | |
|
Hillwalking route up Suilven from Glencanisp and Kirkaig Falls. A superb circuit from Lochinver, combining Suilven’s ridges and the spectacular falls. Peaks : 1 Fiona
Ascent : 1425m (4680ft) Distance : 22km (14m) Time : 7:50hr* | |
Canisp from Loch Awe | |
|
Hillwalking route to Canisp from Loch Awe. A shorter approach than from Glencanisp Lodge, with few paths, but some fine rock formations along the way. Peaks : 1 Corbett
Ascent : 740m (2430ft) Distance : 13km (8m) Time : 4:30hr* | |
* Times shown are estimates – see timing notes on the disclaimer page for more information.


