Aonach Mòr in the context of Ben Nevis

Glen Nevis (Scottish Gaelic: Gleann Nibheis) is a glen in Lochaber, Highland, Scotland, with Fort William at its foot. It is bordered to the south by the Mamore range, and to the north by the highest mountains in the British Isles: Ben Nevis, Càrn Mor Dearg, Aonach Mòr, and Aonach Beag. It is home to one of the three highest waterfalls in Scotland, Steall Falls, where the Allt Coire a'Mhail joins the Water of Nevis in the glen. Below the waterfall is a steeply walled and impressive gorge. The scenic beauty of the glen has led to its inclusion in the Ben Nevis and Glen Coe National Scenic Area, one of 40 such areas in Scotland. Several films have been shot in Glen Nevis, including some scenes from the Harry Potter movies, Highlander, Highlander III: The Sorcerer, Braveheart and Rob Roy.

A public road runs for 10 km up the Glen, becoming single track after 7 km. There is a hotel, Scottish Youth Hostels Association hostel, and campsite at the bottom of the glen, near Fort William, and a small hamlet further up at Achriabhach.

Aonach Beag is a mountain in the Scottish Highlands. It is located about 3 km east of Ben Nevis on the north side of Glen Nevis, near the town of Fort William. Apart from Ben Nevis, Aonach Beag is the highest peak in the British Isles outside the Cairngorm mountains in eastern Scotland.

Aonach Beag is linked to its close neighbour to the north, Aonach Mòr, by a high saddle or bealach. The name Aonach Beag (small ridge) might imply that this mountain is smaller than Aonach Mòr (big ridge). However, Aonach Beag is higher; the names refer to the relative bulk of the two mountains rather than their elevation.