Brough Castle, at the upper end of the Eden Valley, is a spectacular medieval ruin on the site of the Roman fort of Verteris. The earthworks around the castle represent an 11th century castle laid out on the alignment of the Roman ditches and walls. The inner ward of the castle was lined with stone walls, representing the present monument. The tall late 12th century keep, the D-shaped Cliffords Tower and the 14th century hall range stand almost to their full height.