Càrn a’ Mhàim from Linn of Dee

Càrn a’ Mhàim from Linn of Dee is a 14-mile (22.5 km) out-and-back with about 648 m of ascent. You walk from the car park on a forest path and Glen Lui track to Derry Lodge, cross Luibeg Burn, then climb a steep path to the Munro summit. Allow around 7–8 hours with stops. This is a proper hill day, not a short summit dash: the approach is long but mostly on good tracks, and the hardest work comes at the end. It stands on its own; Ben Macdui is a separate, much bigger outing.

Leave Linn of Dee north through the trees. The path has boardwalk in places before joining the Land Rover track up Glen Lui. The track crosses Lui Water, then leaves the forest for the open glen. Derry Lodge appears in the pinewoods; pass it, go by the Mountain Rescue Hut, cross Derry Burn on the footbridge and turn left. The clearing beyond can be boggy, then the path improves as it leaves the last pines. Bob Scott’s, an open refuge for walkers, sits just south of Derry Lodge; it isn’t a staffed stop.

At Luibeg Burn the route reaches a ford. In low water you may be able to cross; when it is in spate, use the bridge roughly 400 m upstream, then follow the wet path that rejoins above the ford. Don’t wade into a fast or deep burn to stay on the line.

After a few hundred metres, turn right onto the direct ascent. The path climbs northwest, gets steadily steeper and rougher over stones, then eases above the Coire na Poite crags before turning left onto the south ridge. This is where the walk changes from a long valley approach into a proper mountain climb.

The first top, at 1,014 m, is not the true summit. The path skirts it and crosses a shallow col for about half a kilometre to Càrn a’ Mhàim. From the top, look across the deep trench of the River Dee to Devil’s Point and Càrn Toul. The mountain is a southern satellite of Ben Macdui, linked by a long, narrow ridge that stands out in the Cairngorms.

The ridge runs north-northwest and narrows into a fine arete. A short out-and-back along it is the walk’s best extra if conditions and your footing are good; it is not included in the 14-mile figure. The bealach beyond is where the much longer Ben Macdui continuation begins, with a bouldery climb of about 400 m. Turn back there unless that is the day you planned.

The large Linn of Dee car park is the established start and charges non-members. Toilets are seasonal, generally available from Easter through October. Carry food for the day; Bob Scott’s is an open refuge, not a café. Before or after the hike, the Linn of Dee gorge is a quick detour: the River Dee squeezes through a rocky gap under the road bridge, and the place was one of Queen Victoria’s favourite picnic spots. Dogs can come under Scotland’s access rules; keep them under proper control around wildlife and livestock.