Skip to content

Munro · Fife & Perthshire

Meall na Aighean

Meall na Aighean (982m) — also known as Creag Mhòr in some lists — is the easternmost Munro of the Càrn Mairg group on the north side of Glen Lyon, the four-Munro chain often climbed as a horseshoe round from Invervar. The hill is the southernmost and least dramatic of the four, but its position gives perhaps the best southward views across Glen Lyon and Loch Rannoch towards the Mamores and Ben Nevis.

Quick facts

Height
982.1m/ 3222ft
Prominence
136 m
Distance
17 km
Ascent
864 m
Time
58 hrs
Difficulty
4 / 5Serious
Grid ref
NN694496
Parking
NN666483
Nearest city
Perth· 50km
Dogs
Dogs on lead required near livestockDog-friendly guide ↗

Height and prominence cross-checked against the Database of British and Irish Hills (CC BY).

No GPX track yet

Walked this route? Share your track to help other walkers.

Submit your GPX

Standard route

Glen approach 25% · Open hillside 45% · Summit 30%

17km · 864m ascent · 4.8 hrs

See Càrn Mairg for the standard full four-Munro Invervar horseshoe. Meall na Aighean is the last summit reached on the standard clockwise traverse — climbed via the connecting ridge from Càrn Mairg over a deep bealach. Descent is down the long south ridge directly to Invervar. As a single Munro, the south ridge gives a direct ascent of around 7km return with 850m of climb.

Terrain

The Invervar Burn track is firm peat. Meall na Aighean's south ridge is open hillside on grass and heather, pathless until higher up. The summit forms a small rocky outcrop on a broad upland top. The connecting ridge west to Càrn Mairg involves a deep peat-hagged bealach — slow underfoot. The Glen Lyon road is narrow single-track.

In winter

A reasonably benign Càrn Mairg group winter day. Broad mossy summits gather wind-blown snow but offer few avalanche-prone slopes. The deep bealach connecting to Càrn Mairg drifts heavily. The Glen Lyon road can drift closed in heavy snow. SAIS Southern Cairngorms is the closest regional indicator. Phone reception in the glen is reasonable; absent on the tops.

Best time of year

Best OK Avoid

Getting there

  • Glasgow2h 48m
  • Edinburgh2h 0m
Parking: NN666483

OS maps: OS Landranger 51

Mobile signal: Reasonable signal at Invervar. Signal thins beyond 800m. Get maps saved before starting out.

Current conditions

Daylight Today

18h 34mwalking daylight
Sunrise
05:00
Sunset
21:46
Civil dawn
04:06
Civil dusk
22:40

NOAA Solar Calculator · 23 July 2026

Got a photo of Meall na Aighean?

30 seconds, helps other walkers.

Submit a photo

Walked it with a GPX?

From your watch or phone.

Submit GPX

Trip report?

Share what it was actually like.

Get in touch →

Meall na Aighean — common questions

How hard is Meall na Aighean?
We grade Meall na Aighean at 4/5, which puts it in challenging territory. The usual route is around 17km with 864m of climbing; allow 5-8 hours. Underfoot: The Invervar Burn track is firm peat.
What is Meall na Aighean's prominence?
136m of prominence. That's the vertical drop from the summit to the col that links Meall na Aighean to the next higher ground.
Where do I park for Meall na Aighean?
Most walkers start from NN666483. Verify the grid reference on an OS map before you set off — space is tight on busy summer weekends.
When is the best time to climb Meall na Aighean?
May, June, July, August, September, October give the most reliable conditions on Meall na Aighean. Beyond that window the high ground turns wintry: carry full mountain kit, be confident navigating, and check the SAIS avalanche forecast for the area.
Is Meall na Aighean dog-friendly?
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 Meall na Aighean?
Reasonable signal at Invervar. Signal thins beyond 800m. Get maps saved before starting out.
Is Meall na Aighean safe in winter?
A reasonably benign Càrn Mairg group winter day. Broad mossy summits gather wind-blown snow but offer few avalanche-prone slopes. The deep bealach connecting to Càrn Mairg drifts heavily. The Glen Lyon road can drift closed in heavy snow. SAIS Southern Cairngorms is the closest regional indicator. Phone reception in the glen is reasonable; absent on the tops.

Get the OutdoorSCOT weekly

One email a week — new route, hill and bothy guides, seasonal conditions and the odd hard-won lesson. No spam, unsubscribe in one click.

Unsubscribe in one click. We don't share your email.