Beinn Dubhchraig

Beinn Dubhchraig, at 978 metres, is a satellite of the mighty Ben Lui, usually climbed together with its neighbour Ben Oss, and offers a fine view down the length of Loch Lomond from its summit.

The route starts from the Dalrigh car park off the A82 near Tyndrum, following the tarmac lane across the West Highland Way and over the old stone White Bridge (Drochaid Bhàn). A smaller track on the far side crosses the railway before entering the beautiful Caledonian pine and birch woodland of Coille Coire-Chuilc, following the Allt Coire Dubhchraig past several waterfalls on notably wet, sometimes very boggy ground. Beyond the woods, open moorland leads to the broad ridge, from where a clear path heads south-east for a short and straightforward final climb — only around 80 metres of ascent along the ridge — to the summit cairn, with superb views south down Loch Lomond.

Most walkers continue to Ben Oss, retracing the ridge briefly before descending past a series of small lochans and down rockier ground to the Bealach Buidhe overlooking Loch Oss, from where the neighbouring Munro is climbed. The return route from Ben Oss requires reascending back over Beinn Dubhchraig's ridge, since the direct descent north from the bealach is barred by crags.

The combined round taking in both Munros from Dalrigh is around 18-19 kilometres with substantial ascent, typically eight to ten hours including the notoriously boggy approach and return through the forest.

The lower approach path is extremely boggy in almost all conditions, and waterproof footwear is essential; higher up the ridges become broad, rocky, and undulating with some crags, making navigation genuinely confusing in poor visibility.

The Dalrigh car park is free but can be busy; Tyndrum has both rail stations nearby, around 2.5 kilometres away on the West Highland Way.