There are some 50 stone circles in Cumbria, including some of the earliest stone circles in Britain. There is a vast range of types, from the vast monumental circles at Castlerigg, Swinside and Long Meg, to the standard early bronze age circles of about 100 ft in diameter as at Casterton and Elva Plain, to diminutive rings associated with alignments and burials. Some are associated with henge monuments such as Mayburgh.