The earthwork remains of an irregular embanked enclosure, possibly the site of a former post medieval sheepfold or sheep wick. The site is located in the north-eastern corner of a field within Cliffe Marshes, surrounded on two sides by existing water-filled ditches and the earthwork traces of former ditches on the remaining sides. It is possible that this enclosure is the remains of a former medieval saltern mound, the elevated area in the marshes re-used in the post medieval period.Saltern mounds are the result of large-scale salt manufacturing where brine was extracted from salt-rich sands and sediments, concentrated and evaporated using process known as sleeching. The discarded waste material from the process built up around the production area into a sizeable mound, often with a hollow in the centred where a hut stood. These medieval saltern mounds are typically described as `floriate' in form because of their irregular lobed formation of dumped waste. They often occur in clusters around former and surviving tidal water-courses within the marsh. There has been considerable reclamation and subsequent sea wall construction since the medieval period which has isolated these sites from the sea.