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Carn Mor
Photo: Ralph Greig / CC BY-SA 2.0 via Geograph
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Corbett · Cairngorms

Carn Mor

Càrn Mòr — 'the big cairn' — is the heather-clad Corbett of the upper Avon country, rising north-west of Tomintoul on the long ridge running down toward the Cromdale hills. The 804m summit is a small rocky tor on a broad moorland plateau, and the views span from the main Cairngorm plateau in the south to Speyside and the Moray Firth in the north. Drier and friendlier underfoot than the western Highlands, the hill is a good day for parties based at Tomintoul or in lower Speyside.

Gaelic: “cairn-topped hill, big” · Pronunciation: karn more

Quick facts

Height
804m/ 2638ft
Distance
13 km
Ascent
680 m
Time
35 hrs
Difficulty
2 / 5Moderate
Grid ref
NJ265183
Parking
NJ128205
Nearest city
Inverness
Dogs
Dogs on lead required near livestockDog-friendly guide ↗

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Standard route

glen track 25% · heather moorland 35% · plateau grass 30% · summit area 10%

13km · 680m ascent · 5.5 hrs

Park at the small layby near Bridge of Brown on the A939 (NJ128205), the road between Grantown-on-Spey and Tomintoul. Walk south-east along a Land Rover track for around 4km, gaining height steadily across moorland. Where the track curves north, leave it and climb south onto Càrn Mòr's broad north ridge. The summit cairn is reached after a short final pull. Allow 5–6 hours.

Terrain

Decent estate Land Rover track on the long approach. Above the track the going is short heather and grass — drier than most Highland hills thanks to the rain-shadow position east of the Cairngorms. The summit is a small rocky tor on a broad plateau; in cloud the descent line needs accurate bearing.

In winter

Cold easterly winds from the Mearns can be brutal on the broad plateau; snow holds well from January through March. No avalanche concerns on the standard line. The Bridge of Brown layby on the A939 is reliably ploughed but the road itself can close in heavy storms over the Lecht.

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

Best time of year

Best OK Avoid

Getting there

  • Glasgow3h 13m
  • Edinburgh3h 4m
Parking: NJ128205AB37 9ES

OS maps: OS Landranger 37

Mobile signal: No signal in upper Glen Avon/Loch Avon area

Current conditions

Daylight Today

19h 31mwalking daylight
Sunrise
04:27
Sunset
21:54
Civil dawn
03:25
Civil dusk
22:56

NOAA Solar Calculator · 31 May 2026

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Carn Mor — common questions

How hard is Carn Mor?
Carn Mor is rated 2/5 (moderate) on the OutdoorSCOT scale. The standard route covers about 13km with 680m of ascent and takes most walkers 3-5 hours. Terrain: Decent estate Land Rover track on the long approach.
Where do I park for Carn Mor?
Standard parking is at NJ128205 near Inverness. 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 Carn Mor?
The standard good-weather months for Carn Mor are April, 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 Carn Mor?
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 Carn Mor?
No signal in upper Glen Avon/Loch Avon area
Is Carn Mor safe in winter?
Cold easterly winds from the Mearns can be brutal on the broad plateau; snow holds well from January through March. No avalanche concerns on the standard line. The Bridge of Brown layby on the A939 is reliably ploughed but the road itself can close in heavy storms over the Lecht.