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.
Ingrebourne Valley is a local nature reserve (LNR) in Hornchurch in the London Borough of Havering. It is owned and managed by Havering Council, and has a visitor centre managed by the Essex Wildlife Trust. Most of it is in Hornchurch Country Park west of the River Ingrebourne, but there are also areas north and south of the park which are part of the LNR. It has a wide range of habitats, including woodland, grassland, the river and marshes. It is an important site for a range of species of plants, animals and birds, including great crested newts, slow worms, the harvest mouse and the water vole.
Norsey Wood is a 67.2 hectare biological Site of Special Scientific Interest in Billericay, Essex. It is also a Local Nature Reserve and a Scheduled Monument.
Colne Estuary is a 2915 hectare biological and geological Site of Special Scientific Interest near Brightlingsea in Essex. It is also a Nature Conservation Review site, a National Nature Reserve, a Ramsar wetland site of international importance, a Special Protection Area, a Special Area of Conservation, and a Geological Conservation Review site. Three areas in the site are managed by the Essex Wildlife Trust, Colne Point, Fingringhoe Wick and Howlands Marsh.
Stocker's Lake is an old flooded gravel pit of approx 90 acres (37.5ha) at Rickmansworth, Hertfordshire, England, within the Colne Valley Regional Park which is designated as a Local Nature Reserve.
Frays Farm Meadows is a 28.2-hectare (70-acre) biological Site of Special Scientific Interest near Denham in the London Borough of Hillingdon. It was notified as an SSSI in 1981, and has been managed by the London Wildlife Trust on behalf of Hillingdon Council since 1999. It is part of the Colne Valley Regional Park.
Mid Colne Valley is a 132 hectare biological Site of Special Scientific Interest in Harefield in the London Borough of Hillingdon and Denham in South Buckinghamshire. Its main importance lies in its extensive diversity of birdlife in lakes in former gravel pits.
Elmbridge Open Space or Elmbridge Meadows is a Local Nature Reserve in Berrylands in the Royal Borough of Kingston upon Thames in London. It is a linear open space along the western bank of the Hogsmill River which starts at Malden Way and ends at a path between Surbiton Hill Park to Green Lane.
Denham Country Park is a 69-acre public park and Local Nature Reserve in Buckinghamshire and the London Borough of Hillingdon. It is part of the 42 square mile Colne Valley Regional Park, and the Colne Valley Park Visitor Centre and cafe are located in Denham Country Park.
Roding Valley Meadows is an 18.9 hectare 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.
The Chase is a nature reserve in Dagenham in London. Most of it is in the London Borough of Barking and Dagenham, with a small part in Havering. It is owned by the boroughs, and managed by London Borough of Barking & Dagenham - Parks & Countryside Ranger Service. The boroughs have designated the sections in their respective boroughs as Local Nature Reserves. The Chase, together with the neighbouring Eastbrookend Country Park, is also designated a Site of Metropolitan Importance for Nature Conservation.
Colney Heath Local Nature Reserve is a 22.5 hectare Local Nature Reserve in Colney Heath in Hertfordshire. It is owned by St Albans City Council and managed by Colney Heath Parish Council. The site was acquired in the 1950s and 1960s, and it is a Hertfordshire Heritage Site.
Brickfield and Long Meadow is a 3.9 hectare Local Nature Reserve in Earls Colne in Essex, England.
Colne Local Nature Reserve is a 34.7 hectare Local Nature Reserve in Wivenhoe in Essex. It is owned and managed by Colchester Borough Council.
Grove House Wood is a 2.2 hectare Local Nature Reserve in Stanford-le-Hope in Essex. According to Natural England, it is owned by Thurrock Council and managed by Essex Wildlife Trust but it is not listed on the web site of either body.
Colne Point is a 276.4 hectare nature reserve south-west of St Osyth in Essex. It is managed by the Essex Wildlife Trust. It is part of the Colne Estuary Site of Special Scientific Interest, national nature reserve, Ramsar site, Nature Conservation Review site and Special Protection Area. It is also part of the Essex Estuaries Special Area of Conservation.
Fingringhoe Wick is a 48.6 hectare nature reserve in Fingringhoe in Essex. It is managed by the Essex Wildlife Trust, which runs a visitor centre on the site. It is part of the Colne Estuary Site of Special Scientific Interest, Ramsar site and Nature Conservation Review site.
Rye Harbour LNR is a 325.4-hectare (804-acre) Local Nature Reserve in Rye in East Sussex. The site is part of the 465-hectare (1,150-acre) nature reserve managed by the Sussex Wildlife Trust. It is also part of Dungeness, Romney Marsh and Rye Bay Ramsar site, Special Protection Area and Site of Special Scientific Interest and Dungeness Special Area of Conservation.
