The two ridges on the western side of Emyn Muil ran roughly north-south and were steeper on their western sides. (The Riders of Rohan; Bk2).

The East Wall was a steep ridge on the west side of Emyn Muil. It rose some 120 feet from a wide and rugged shelf above the plains of Rohirrim. From the top Legolas saw a great company on foot – clearly the Orcs who had captured Merry and Pippin – some 36 miles ahead.