The Corton Formation is a series of deposits of Middle Pleistocene age found primarily along the coasts of Suffolk and Norfolk in eastern England. The formation comprises two stratigraphic facies, an upper thicker fine to medium sand which becomes a pebbly sand towards the base (around Lowestoft, the pebbly sands may be more extensive), and a lower till comprising very silty sandy clay or clayey sand. The formation is named after Corton, Suffolk, the type locality for the Anglian Stage of the Pleistocene in Britain. The formation is overlain by the Lowestoft Formation.