Mote of Annan is an early 12th century earthwork motte and bailey fortress, founded by the de Brus family. Standing against the River Annan, a flood in the mid 12th century caused the river to change its course, which then eroded away the western half of the fortification. By 1166, the castle had been abandoned and the main seat of the family was moved to Lochmaben Old Castle. A wide ditch, separates the motte from the long bailey, which retains its rampart and ditch. Landscaped gardening has affected the site and reduced the height of the motte. 5 miles north-west is Hoddom Castle and 8 miles west is Comlongon Castle.