Foulness SSSI Foulness SSSI Foulness SSSI is a 10,702 hectare biological Site of Special Scientific Interest covering the shoreline between Southend-on-Sea and the Crouch estuary in Essex. It is a key site in "A Nature Conservation Review", and is part of the Essex Estuaries Special Area of Conservation. It covers two Ramsar wetland sites of international importance, 'Crouch and Roach Estuaries' and 'Foulness'. An area of 6.4 hectares is Shoeburyness Old Ranges, a Local Nature Reserve managed by the Essex Wildlife Trust. Most of the site is owned and managed by the Ministry of Defence. Natural England describes it as "extensive intertidal
River Foulness the area. The area surrounding the river is almost totally agricultural. There are very few Public Rights of Way in the river valley. It is not crossed by many roads and there are few major settlements; therefore, leisure activity is limited mainly to angling. River Foulness The River Foulness is a river in the East Riding of Yorkshire, England. Its name is derived from Old English "fūle[n] ēa", meaning “dirty water”. Maintenance responsibilities for the river transferred from the Environment Agency to the Market Weighton Drainage Board on 1 October 2011. Market Weighton Drainage Board subsequently amalgamated with the Lower