The stones are no higher than 80 centimetres (31 in), and are separated by a distance of approximately 4 metres (13 ft). The smallest stone is decorated with 13 cup marks, or small depressions in the rock, a well known form of prehistoric rock art in Northumberland. The Goatstones is the only recorded example of a four-poster stone circle bearing cup marks. Grooves can be seen on some of the other stones.[3] Within the circle there are traces of a low mound. This is thought to be the remains of a stone cairn which predates the construction of the stone circle and may have been the site of Bronze-Age burials.[4]
Four-poster stone circles are found mainly in Scotland, particularly in Perthshire, and more rarely in Ireland, Wales and England. Another example in Northumberland is the Three Kings in the parish of Rochester.