A series of irregular and rectangular enclosures and ditches visible on J. Pickering aerial photographs either side of a long sinuous cropmark feature, perhaps a ditch or a stream. Part of a sequence of cropmarks running east to west across the fen edge towards the higher land and the modern village of Billingborough. The sinuous ditch appears to link these cropmarks with similar cropmarks to the east (PRN33309) and to the west (PRN32972).{1}{2}{3} The cropmark morphology would suggest the sites date to the later prehistoric. {4}