Càrn Dearg (Corrour)  Carn Dearg (941 m) is a remote mountain in the Grampian Mountains of Scotland. It lies east of Rannoch Moor, on the border of Highland and Perthshire. The peak is usually reached via either Corrour station or Rannoch station as it is located miles away from any road or settlement. Loch Ossian lies to the south.