Mullach na Dheiragain

Mullach na Dheiragain, at 982 metres, is regarded as one of the least accessible Munros in the whole of Britain, an outlier on the northern ridge system of Sgùrr nan Ceathreamhnan that most walkers only reach as the final, remote extension of an already major expedition.

From the col shared by Sgùrr nan Ceathreamhnan and An Socach, the route continues along a ridge across the Bealach na Con Dhu before climbing the wide, sprawling slopes of Mullach na Dheiragain — the path can seem to wander away from the true line, so walkers are advised to strike directly up the slope to locate the summit cairn towards the far end, since the summit area itself lacks any real distinction. Reaching it from and returning to any roadside starting point within a single day is, in the words of one experienced local guide, "a feat for supermen only," meaning virtually all parties treat this as part of a two-day expedition based at Alltbeithe or Camban bothy.

An alternative for those tackling all three Munros of this group avoids a full reascent of Sgùrr nan Ceathreamhnan on the return by traversing across to the small lochans of Loch Coire nan Dearcag — a grand, remote corrie backed by crags — before climbing straightforward slopes back up to the Bealach nan Daoine to rejoin the ridge crest.

Combined with Sgùrr nan Ceathreamhnan and An Socach, a full traverse of all three group Munros from Alltbeithe or via a bike-assisted approach from Glen Elchaig can total upwards of 28-30 kilometres of walking with over 2,000 metres of ascent in a single very long day, or more comfortably spread across two.

This is genuinely remote, committing terrain with a reasonable path along the ridges themselves but boggy, pathless sections on some approach and shortcut options — full self-sufficiency, navigation skills, and either overnight bothy/camping capability or exceptional fitness for a single very long day are essential.

There is no vehicle access to Alltbeithe; the nearest road ends are at Glen Affric, Morvich, or the Cluanie Inn, all served by limited Citylink bus routes.