This area has been listed by Historic England as a scheduled ancient monument. The moat contains a breeding population of great crested newts.
The monument includes the remains of a Medieval moated enclosure. The enclosure is rectangular in form measuring some 77m by 55m inclusive of the 8m wide surrounding ditches. Entrance to the moated island is provided by a ramped causeway on the south-east side. The interior of the island is raised some 2m above the surrounding land. There are now no visible earthwork remains of Medieval buildings or features on the moated island. An outer scarp surrounds part of the ditch and can be seen along part of the south-west and south-east arms and also along the north-western side of the moat, although here it is largely obscured by recent dumping. The north-eastern side is bounded by a very gradual slope, leading almost up to the modern drain. The remains of an outer moated enclosure formerly recorded as attached to the north-west side of the moat are no longer visible and are not included in the scheduled area. The moated enclosure is believed to be the capital messuage of the Cottenham manor of Crowland Abbey.