An extensive area of cropmarks is visible lying in fields between the Sandwich Bay Estate and the North Stream on aerial photographs taken in 1996 and 2001. The cropmarks form complex overlapping patterns and visible over an area measuring c.800m (NW-SE) by c.250m (NE-SW). They include interlinked subrectangular enclosures, curvilinear trackways, smaller subcircular and subrectangular enclosures and possible field boundaries. At least two phases of enclosure system may be represented since some of the subrectangular ditched enclosures appear to be crossed by the curvilinear trackways. The cropmarks are similar in morphology to enclosure systems of later prehistoric and/or Romano-British date. It is possible that settlement activity may be indicated within the systems by the presence of smaller enclosures.