Cooper's Hill is an 18.1-hectare (45-acre) biological Site of Special Scientific Interest in Ampthill in Bedfordshire. It was notified under Section 28 of the Wildlife and Countryside Act 1981 in 1984, and the planning authority is Central Bedfordshire Council. A smaller area of 12.7 hectares is also a Local Nature Reserve, Part of the site is managed by the Wildlife Trust for Bedfordshire, Cambridgeshire and Northamptonshire.
Flitwick Moor is a 59.8-hectare (148-acre) biological Site of Special Scientific Interest between Flitwick and Greenfield in Bedfordshire. It was notified under Section 28 of the Wildlife and Countryside Act 1981 in 1984 and the local planning authority is Central Bedfordshire Council. The site is managed by the Wildlife Trust for Bedfordshire, Cambridgeshire and Northamptonshire.
Marston Thrift is a 37.4-hectare (92-acre) biological Site of Special Scientific Interest between Marston Moretaine and Cranfield in Bedfordshire. It was notified in 1984 under Section 28 of the Wildlife and Countryside Act 1981, and the local planning authority is Central Bedfordshire Council. It is also a Local Nature Reserve, which extends to a larger area of 55.8 hectares.
Aston Rowant Woods is a 209.7-hectare (518-acre) biological Site of Special Scientific Interest near Aston Rowant in Oxfordshire and Buckinghamshire. Part of it is in Aston Rowant National Nature Reserve, and a large part is in the Chiltern Beechwoods Special Area of Conservation. The site is also in the Chilterns Area of Outstanding Natural Beauty.
Whittlesford - Thriplow Hummocky Fields is a 55.6-hectare (137-acre) biological Site of Special Scientific Interest between Whittlesford and Thriplow in Cambridgeshire. This site has two unusual species, the nationally rare grass-poly, which is only found in south Cambridgeshire on the British mainland, and the nationally uncommon fairy shrimp Chirocephalus diaphanus. They are found in shallow hollows in arable fields, which are the result of ice lenses melting at the end of the last ice age. There are also uncommon liverworts.
Sutton Heath and Bog is an 18.3-hectare (45-acre) biological Site of Special Scientific Interest east of Wansford in Cambridgeshire.
Whitewater Valley is a 4.3-hectare (11-acre) biological Site of Special Scientific Interest north-west of Wittering in Cambridgeshire.
Upper Nene Valley Gravel Pits is a 1,382.4 hectare biological Site of Special Scientific Interest in a chain of flooded gravel pits along 35 kilometres of the valley of the River Nene between Northampton and Thorpe Waterville in Northamptonshire. It is a Ramsar wetland site of international importance, a Special Protection Area under the European Communities Birds Directive and part of the Nene Valley Nature Improvement Area. It is also part of the River Nene Regional Park. Two areas are managed by the Wildlife Trust for Bedfordshire, Cambridgeshire and Northamptonshire, Summer Leys and Titchmarsh Nature Reserve.
Ditchford Lakes and Meadows is a 31.1-hectare (77-acre) nature reserve Northamptonshire. It is managed by the Wildlife Trust for Bedfordshire, Cambridgeshire and Northamptonshire. It is part of the Upper Nene Valley Gravel Pits Site of Special Scientific Interest, Ramsar wetland site of international importance, and Special Protection Area under the European Communities Birds Directive.
Coombe Hill Hollow is a 4.3-hectare (11-acre) biological Site of Special Scientific Interest north of Sibbertoft in Northamptonshire.
Higham Ferrers Pits is a 10 hectare nature reserve Northamptonshire. It is managed by the Wildlife Trust for Bedfordshire, Cambridgeshire and Northamptonshire. It is part of the Upper Nene Valley Gravel Pits Site of Special Scientific Interest, Ramsar internationally important wetland site and Special Protection Area under the EC Birds Directive.
Wilson's Pits is a 32 hectare nature reserve west of Higham Ferrers in Northamptonshire. It is managed by the Wildlife Trust for Bedfordshire, Cambridgeshire and Northamptonshire. It is part of the Upper Nene Valley Gravel Pits Site of Special Scientific Interest, Ramsar internationally important wetland site and Special Protection Area under the EC Birds Directive.
Potton Hall Fields, Westleton is a 16.7-hectare (41-acre) biological Site of Special Scientific Interest (SSSI) west of Dunwich in Suffolk. It is in the Suffolk Coast and Heaths Area of Outstanding Natural Beauty.
Valley Farm Pit, Sudbourne is a 0.5-hectare (1.2-acre) geological Site of Special Scientific Interest north of Orford in Suffolk. It is a Geological Conservation Review site, and in the Suffolk Coast and Heaths Area of Outstanding Natural Beauty.
Breckland Forest is an 18,126 hectare biological and geological Site of Special Scientific Interest in many separate areas between Swaffham in Norfolk and Bury St Edmunds in Suffolk. It is part of the Breckland Special Protection Area under the European Union Directive on the Conservation of Wild Birds. It contains two Geological Conservation Review sites, Beeches Pit, Icklingham and High Lodge. Barton Mills Valley is a Local Nature Reserve in the south-west corner of the site.
Shacklewell Hollow is a 3.2 hectares biological Site of Special Scientific Interest east of Empingham in Rutland, and beside the A606 road.
Booton Common'' is an 8.2-hectare (20-acre) biological Site of Special Scientific Interest north-west of Norwich in Norfolk. It is managed by the Norfolk Wildlife Trust and is a Special Area of Conservation
East Ruston Common is a 34.5-hectare (85-acre) biological Site of Special Scientific Interest south-east of North Walsham om Norfolk.
