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Munro · Glen Coe & Lochaber

Mullach nan Coirean

Mullach nan Coirean (939m) — "summit of the corries" — is the western terminus of the Mamores chain in upper Glen Nevis. The hill pairs with Stob Bàn (Mamores) for a fine short horseshoe round from Polldubh. Where Stob Bàn has a distinctive quartzite-capped summit, Mullach nan Coirean is a broader rounded peak with a large cairn at the high point. Together the two make one of the most accessible Mamores Munro pairs.

Quick facts

Height
939.3m/ 3082ft
Distance
16 km
Ascent
827 m
Time
58 hrs
Difficulty
4 / 5Serious
Grid ref
NN122662
Parking
NN145684
Nearest city
Fort William
Dogs
Dogs on lead required near livestockDog-friendly guide ↗

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Standard route

Forestry track 35% · Open hillside 40% · Summit plateau 25%

16km · 827m ascent · 4.6 hrs

Park at the Polldubh / Lower Falls car park in upper Glen Nevis. Cross the wire footbridge over the Nevis and climb steeply east through the cleared forestry onto the Mullach nan Coirean east ridge, then bear north-east along the broad summit crest. Most parties continue to Stob Bàn via the broad connecting ridge, descending Stob Bàn's east ridge back to Achriabhach. The pair total roughly 12km with 1180m of climb.

Terrain

The Polldubh forestry path is wet and root-tangled in places. The Mullach nan Coirean east ridge climbs sustained ground through clear-felled plantation, becoming short grass on the upper slopes. The broad summit is a flat top with a large cairn. The link across to Stob Bàn is broad mossy turf with the white quartzite cone visible ahead.

In winter

A serious Mamores winter Munro pair. The west Mamores summit and connecting ridge to Stob Bàn collect wind-blown snow but are rarely avalanche-prone. The Polldubh access path stays reliable. SAIS Lochaber applies. Phone signal is intermittent at the trailhead and absent on the high ridge.

This hill is in the Glen Coe SAIS forecast area. Check SAIS forecasts in winter (December–April).

Best time of year

Best OK Avoid

Getting there

  • Glasgow2h 22m
  • Edinburgh3h 6m
Parking: NN145684

OS maps: OS Landranger 41

Mobile signal: Intermittent signal on the forestry approaches from Glen Nevis. Above the treeline there is typically no signal. The Achriabhach car park has patchy coverage.

Current conditions

Daylight Today

19h 42mwalking daylight
Sunrise
04:32
Sunset
22:07
Civil dawn
03:28
Civil dusk
23:10

NOAA Solar Calculator · 7 June 2026

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Mullach nan Coirean — common questions

How hard is Mullach nan Coirean?
Mullach nan Coirean is rated 4/5 (challenging) on the OutdoorSCOT scale. The standard route covers about 16km with 827m of ascent and takes most walkers 5-8 hours. Terrain: The Polldubh forestry path is wet and root-tangled in places.
Where do I park for Mullach nan Coirean?
Standard parking is at NN145684 near Fort William. Check the parking grid reference on an OS map before travel; informal laybys can fill on summer weekends.
When is the best time to climb Mullach nan Coirean?
The standard good-weather months for Mullach nan Coirean are May, June, July, August, September, October. Outside those months, expect winter conditions on the high ground — full mountain kit, navigation skills, and a check of the SAIS avalanche forecast for the relevant region.
Can I bring my dog up Mullach nan Coirean?
Yes, but dogs must be kept on a lead — there is livestock or ground-nesting bird interest on the route.
Is there mobile signal on Mullach nan Coirean?
Intermittent signal on the forestry approaches from Glen Nevis. Above the treeline there is typically no signal. The Achriabhach car park has patchy coverage.
Is Mullach nan Coirean safe in winter?
A serious Mamores winter Munro pair. The west Mamores summit and connecting ridge to Stob Bàn collect wind-blown snow but are rarely avalanche-prone. The Polldubh access path stays reliable. SAIS Lochaber applies. Phone signal is intermittent at the trailhead and absent on the high ridge.

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