NN2202456321 From the A82 head south towards Buachaille Etive Mor. Cross a footbridge over the River Coupall, pass the private hut of Lagangarbh, and when the path splits stay right. Soon cross a burn, then ascend the steepening floor of Coire na Tulaich. The engineered path eventually runs out and the final climb up the corrie headwall is on loose scree. From a cairn on the saddle above, head east on a stony path to Stob Dearg, the apex of The Buachaille's much-photographed pyramid.

NN2226754248 Return to the saddle, and continue west to a minor summit, then follow the ridge southwest to climb onto the conical top of Stob na Doire. Staying with the crest, the path now descends quite steeply to a grassy bealach, then continues more gently over Stob Coire Altruim to Stob na Broige, the Buachaille's southern Munro.

NN1907652568 Head back to the grassy bealach to pick up a well-used path descending into the Lairig Gartain. Having crossed the River Coupall turn left onto the main Lairig path briefly. On the right is a cascading burn; a sketchy path climbs beside this to meet a pronounced saddle on the crest of Buachaille Etive Beag. From here first turn right for a short, stony ascent onto the Munro Stob Coire Raineach.

NN1913354810 Retrace your steps to the saddle then continue up to a minor top before following the spine of the hill - a great bit of ridge striding - to reach Stob Dubh, the Munro summit at the southern end of the Buachaille Etive Beag crest.

NN1791153542 Descent to the Lairig Eilde is not straightforward. First continue southwest along the crest, then bear south-southwest down a better-defined spur on easier-angled scree. Soon after the scree turns to grass cut hard right to make a descending traverse across a steep, broken slope to reach the high point of the Lairig Eilde.

NN1700853360 Continue west-southwest over boggy ground, veering left to climb into a shallow grassy corrie that leads steeply to a col between Stob Coire Sgreamhach and an unnamed minor blip (spot height 778m). A long fairly gradual climb northwest now gains the Munro summit of Sgreamhach, a sharp top overlooking the 'Lost Valley' of Coire Gabhail.

NN1547853658 Follow rough rocky ground down the crest to the Bealach Dearg (unnamed on small scale maps), then take the ridge above the Lost Valley Buttresses before a final uphill pull to the twin tops of Bidean nam Bian; the first is higher. With steep ground on most sides, Bidean has a spacious, airy feel.

NN1434054216 Continue over the lower West Top of Bidean, then descend the ridge around the cliff edge to Stob Coire nam Beith, a minor summit with a huge north face of its own. A rubbly path descends west, staying well away from the cliff and then following the ridge as it curves north to a vague col. From here the path drops into Coire nam Beitheach, steadily descending the sloping corrie floor. Once below the west face of Aonach Dubh the path briefly enters the bed of the Allt Coire nam Beitheach with some mildly scrambly moments, before ascending slightly to follow the left bank. Descend past waterfalls to reach the A82 near Loch Achtriochtan.