Carn Dearg lies at the eastern end of a long ridge running SW - NW from the shores of Loch Ossian in the south to Loch Pattack in the north. The ridge contains 3 other Munros including Geal Charn, Aonach Beag and Beinn Eibhinn but Carn Dearg lies quite far off from the others.
Carn Dearg has steep slopes to the SE and NW. There are 2 summit ridges, one running SW over a craggy bealach to connecting Munro Geal Charn. This ridge becomes increasingly craggy the closer you get to Geal Charn. The NE ridge drops down over easy slopes eventually taking you out at Loch Pattack. This is the usual ascent/descent route.
Carn Dearg is a remote Munro, lying well back from any public roads meaning itís a long walk in from either Glen Spean to the N or Dalwhinne to the NE. Parts of the walk in can be cycled however. There are also paths in from Corrour Halt on the West Highland Line just west of Loch Ossian. This feeling of remoteness gives Carn Dearg and the rest of the Munros in this region a fantastic character which is rarely found this far south in the highlands.
There are 2 bothies in the region that can be used to support multiday expeditions.