Belsar's Hill

Belsar's Hill is a hillfort near Willingham, Cambridgeshire [1]. Belsar's Hill is an oval-shaped area, 265–220 metres, enclosing 6 acres [1]. At the time of its construction, it would have constituted an island of firm soil surrounded by waterlogged fens [1]. The hill was situated along the Aldreth Causeway, and is transected by a 19th-century track, believed to be a redirection of the original Causeway [1]. The location of the fortification, on the boundary between the tribal lands of the Iceni and Catuvellauni, and a similarity to other Iron Age hillforts such as Arbury Banks or Wandlebury, suggests an Iron Age provenance [1]. It is believed that the structure was reoccupied during the Norman Conquest [1].