Foxhole Heath is an 85.2-hectare (211-acre) biological Site of Special Scientific Interest east of Eriswell in Suffolk. It is a Nature Conservation Review site, Grade I, and part of Breckland Special Area of Conservation and Breckland Special Protection Area under the European Union Directive on the Conservation of Wild Birds.
Wangford Warren and Carr is a 67.8-hectare (168-acre) biological Site of Special Scientific Interest between Brandon and Lakenheath in Suffolk. It is a Nature Conservation Review site, Grade I, and part of the Breckland Special Area of Conservation, and Special Protection Area An area of 15 hectares is managed as a nature reserve by the Suffolk Wildlife Trust
Weeting Heath is a 141.8-hectare (350-acre) biological Site of Special Scientific Interest west of Thetford in Norfolk, which is managed by the Norfolk Wildlife Trust. It is a Nature Conservation Review site, Grade I, and a National Nature Reserve. It is also part of the Breckland Special Area of Conservation and Special Protection Area.
Breckland Farmland is a 13,392.4 hectare biological Site of Special Scientific Interest (SSSI) 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.
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.
Cavenham–Icklingham Heaths is a 419 hectare biological Site of Special Scientific Interest west of Icklingham in Suffolk. It is a Nature Conservation Review site, Grade I, and part of Breckland Special Area of Conservation and Breckland Special Protection Area under the European Union Directive on the Conservation of Wild Birds. Cavenham Heath is a 203.1 hectare National Nature Reserve.
Deadman's Grave, Icklingham is a 127.3-hectare (315-acre) biological Site of Special Scientific Interest north-east of Icklingham in Suffolk. It is a Nature Conservation Review site, Grade I, and part of Breckland Special Area of Conservation and Breckland Special Protection Area under the European Union Directive on the Conservation of Wild Birds.
Lakenheath Warren is a 588.3-hectare (1,454-acre) biological Site of Special Scientific Interest south-east of Lakenheath in Suffolk, England. It is a Nature Conservation Review site, Grade I, and part of Breckland Special Area of Conservation and Breckland Special Protection Area under the European Union Directive on the Conservation of Wild Birds. The RAF Lakenheath base is located nearby.
Little Heath, Barnham lies south-west of Barnham, Suffolk. Much of the area is now a Site of Special Scientific Interest, which almost surrounds the former chemical weapon store and filling station (FFD1)
Maidscross Hill is a 44.8-hectare (111-acre) biological Site of Special Scientific Interest on the eastern outskirts of Lakenheath in Suffolk. It is a Nature Conservation Review site, Grade I, and larger area of 49.8 hectares is a Local Nature Reserve.
Eriswell Low Warren is a 7.4-hectare (18-acre) biological Site of Special Scientific Interest north-east of Eriswell in Suffolk. It is a Nature Conservation Review site, Grade I, and part of the Breckland Special Protection Area under the European Union Directive on the Conservation of Wild Birds.
How Hill Track is a 3.1-hectare (7.7-acre) biological Site of Special Scientific Interest east of Mildenhall in Suffolk. It is in the Breckland Special Protection Area under the European Union Directive on the Conservation of Wild Birds.
Thetford Heaths is a 270.6-hectare (669-acre) biological and geological Site of Special Scientific Interest in Suffolk. It is a Nature Conservation Review site, Grade I, and parts of it are a national nature reserve, and a Geological Conservation Review, It is part of the Breckland Special Area of Conservation, and Special Protection Area A large part of this dry heathland site is calcareous grassland, and some areas are grazed by sheep or rabbits. There are several nationally rare plants and an uncommon heathland bird, and many lichens and mosses.
Weather and Horn Heaths, Eriswell is a 133.3-hectare (329-acre) biological Site of Special Scientific Interest east of Eriswell in Suffolk. It is a Nature Conservation Review site, Grade I, and part of the Breckland Special Area of Conservation, and Special Protection Area
West Stow Heath is a 44.3-hectare (109-acre) biological Site of Special Scientific Interest west of West Stow in Suffolk. It is part of the Breckland Special Protection Area under the European Union Directive on the Conservation of Wild Birds.
Barnham Cross Common is a 69.1-hectare (171-acre) biological Site of Special Scientific Interest on the southern outskirts of Thetford in Norfolk. It is owned by Thetford Town Council and is registered common land. It is also a Local Nature Reserve and a Nature Conservation Review site, Grade 1. It is part of the Breckland Special Area of Conservation and Special Protection Area.
Bridgham and Brettenham Heaths is a 439.9-hectare (1,087-acre) biological Site of Special Scientific Interest north-east of Thetford in Norfolk, England. It is a Nature Conservation Review site, Grade I, and part of the Breckland Special Area of Conservation and Special Protection Area. Brettenham Heath is a National Nature Reserve.
Stanford Training Area SSSI is part of the British Army Stanford Training Area. It is a 4,678-hectare (11,560-acre) biological and geological Site of Special Scientific Interest north of Thetford in Norfolk. It is a Nature Conservation Review site and part of it is a Geological Conservation Review site. It is also part of the Breckland Special Area of Conservation and Special Protection Area.
Thetford Golf Course and Marsh is a 122.3-hectare (302-acre) biological Site of Special Scientific Interest on the western outskirts of Thetford in Norfolk. It is a Nature Conservation Review site, Grade 2, and part of the Breckland Special Area of Conservation and Special Protection Area.
