The Essex Wildlife Trust (EWT) is one of 46 wildlife trusts which cover the United Kingdom. The EWT was founded in 1959, and it describes itself as Essex's leading conservation charity, which aims to protect wildlife for the future and the people of the county. As of January 2017, it has over 34,000 members and runs 87 nature reserves, 2 nature parks and 11 visitor centres.
Roding Valley Meadows is an 18.9-hectare (47-acre) biological Site of Special Scientific Interest in Buckhurst Hill in Essex. It is part of a 65.2 hectare Local Nature Reserve with the same name, which is owned by Epping Forest District Council and Grange Farm Trust, and managed by the Essex Wildlife Trust.
Hertford Heath nature reserve is a 28 hectare biological Site of Special Scientific Interest in Hertford Heath in Hertfordshire. It is managed by the Herts and Middlesex Wildlife Trust and the local planning authority is East Hertfordshire District Council.
Blake's Wood & Lingwood Common is a 93.2-hectare (230-acre) biological Site of Special Scientific Interest in Danbury in Essex. It is owned by the National Trust and the local planning authority is Chelmsford City Council.
The Crouch and Roach Estuaries are a 1729 hectare biological Site of Special Scientific Interest (SSSI) at the mouth of the Crouch and Roach rivers in Essex. The Crouch part of the SSSI stretches from near Battlesbridge to Foulness Island, and the Roach from Rochford to the junction with the Crouch. Part of the site is in the Mid-Essex Coast Special Protection Area under the EC Directive on the Conservation of Wild Birds, and a Ramsar wetland site of international importance. It is also part of the Essex Estuaries Special Area of Conservation. An area of 65 hectares is managed by the Essex Wildlife Trust as the Lion Creek and Lower Raypits nature reserve and 8 hectares at Woodham Fen, both of which are managed by the Essex Wildlife Trust. A small area is also a geological SSSI, The Cliff, Burnham-on-Crouch.
Woodham Walter Common SSSI is an 80-hectare (200-acre) biological Site of Special Scientific Interest (SSSI) in Danbury in Essex. The site includes six nature reserves within the Danbury Ridge Nature Reserves, managed by the Essex Wildlife Trust. These are Woodham Walter Common itself, Birch Wood, Pheasanthouse Wood, Poors' Piece, Scrubs Wood and a small area in Pheasanthouse Farm. The largest part of the SSSI is the 32.3-hectare (80-acre) Woodham Walter Common, which is managed by the Wildlife Trust on behalf of Maldon District Council and Woodham Walter Parish Council.
Danbury Ridge Nature Reserves are a group of nature reserves totalling 101 hectares near Danbury in Essex, England. They are managed by the Essex Wildlife Trust, and most of them are in Sites of Special Scientific Interest (SSSIs). Two areas, the Backwarden and Hitchcock's Meadow, are part of Danbury Common SSSI, and Woodham Walter Common, Birch Wood, Pheasanthouse Wood, Poors Piece, Scrubs Wood, and a small area in Pheasanthouse Farm, are part of Woodham Walter Common SSSI.
Great Wood and Dodd's Grove is a 36.8-hectare (91-acre) biological Site of Special Scientific Interest in Leigh-on-Sea in Essex. It is also a Local Nature Reserve called Belfairs. Essex Wildlife Trust runs the Belfairs Woodland Centre and manages the site together with Southend-on-Sea City Council.
Belcher's and Broadfield Woods is a 14.4-hectare (36-acre) biological Site of Special Scientific Interest between Halstead and Braintree in Essex. It is managed by the Essex Wildlife Trust as the Brookes Nature Reserve.
West Wood is a 23.6 hectares biological Site of Special Scientific Interest in Little Sampford, north of Thaxted in northwestern Essex. It is owned and managed by the Essex Wildlife Trust.
Crowsheath Wood is an 8.1-hectare (20-acre) nature reserve in Downham, between Billericay and South Woodham Ferrers in Essex. It is managed by the Essex Wildlife Trust.
Blue House Farm is a 242.8-hectare (600-acre) nature reserve and farm in North Fambridge, on the north bank of the River Crouch between Burnham-on-Crouch and South Woodham Ferrers in Essex. It is managed by the Essex Wildlife Trust. Most of the site is in of the Crouch and Roach Estuaries Site of Special Scientific Interest.
Harlow Woods is a 47.1-hectare (116-acre) biological Site of Special Scientific Interest in Harlow in Essex. It is composed of three woods, Hospital Wood Risden's Wood and Parndon Wood. They are owned and maintained by Harlow District Council, and they are part of the slightly larger Parndon Woods and Common Local Nature Reserve.
High Wood, Dunmow is a 41.5-hectare (103-acre) biological Site of Special Scientific Interest in Great Dunmow in Essex. The local planning authority is Uttlesford District Council.
Hockley Woods is a large woodland in south-east Essex. It is a Local Nature Reserve, and parts are a Site of Special Scientific Interest. It is owned and managed by Rochford District Council.
Copperas Wood is a 13.8-hectare (34-acre) nature reserve between Ramsey and Wrabness in Essex. It is owned and managed by the Essex Wildlife Trust, and is part of the Stour and Copperas Woods, Ramsey Site of Special Scientific Interest.
Thorndon Park is a 141.4-hectare (349-acre) biological Site of Special Scientific Interest in Brentwood in Essex. Part of it is run by Essex County Council as Thorndon Country Park, and the Essex Wildlife Trust manages its visitor centre.
Weeleyhall Wood is a 31 hectare biological Site of Special Scientific Interest north of Clacton-on-Sea in Essex. It is managed by the Essex Wildlife Trust.
Woodham Fen is an 8.1 hectare nature reserve in South Woodham Ferrers in Essex. It is managed by the Essex Wildlife Trust. It is part of the Crouch and Roach Estuaries Site of Special Scientific Interest.
