Càrn Eige, sometimes spelt Càrn Eighe, is a mountain in the north of Scotland. At an elevation of above sea level, it is the highest mountain in northern Scotland (north of the Great Glen), the twelfth-highest summit above sea level in the British Isles, and, in terms of relative height (topographic prominence), it is the second-tallest mountain in the British Isles after Ben Nevis (its parent peak for determination of topographic prominence). The highpoint of the historic county of Ross and Cromarty, it is the twin summit of the massif, being mirrored by the Mam Sodhail, to the south on the same ridge.