It is the scar of the most spectacular rockslide or rock avalanche in Britain, which runs out into the corrie of Toll a' Mhadaidh Mor.

The main ridge of Beinn Alligin is then followed round to the north, leading the hillwalker towards Sgùrr Mhòr.

Below the summit of this peak is a deep gash in the hillside known as Eag Dubh, the black notch, one of Beinn Alligin's most recognisable features.

The ridge at this point becomes much rockier, and a series of pinnacles known as the "Horns of Alligin" (Scottish Gaelic: Na Rathanan) must be negotiated.

An alternative descent, avoiding the horns, can be made by leaving the Beinn Alligin ridge at the bealach between the two summits, from where grassy slopes can be followed westwards down into a neighbouring glen.