Dogsthorpe Star Pit is a 36.4-hectare (90-acre) biological Site of Special Scientific Interest (SSSI)) on the eastern outskirts of Peterborough in Cambridgeshire. It is also designated a Local Nature Reserve, and it is managed by the Wildlife Trust for Bedfordshire, Cambridgeshire and Northamptonshire.
Old Rectory Meadows is a 7.9 hectare Site of Special Scientific Interest in Denham in Buckinghamshire.
Bonemills Hollow is a 17.5-hectare (43-acre) biological Site of Special Scientific Interest east of Wittering in Cambridgeshire.
Whitewater Valley is a 4.3-hectare (11-acre) biological Site of Special Scientific Interest north-west of Wittering in Cambridgeshire.
Eye Gravel Pit is a 0.4 hectare geological Site of Special Scientific Interest in Eye Green in Cambridgeshire. It is a Geological Conservation Review site, and part of it overlaps Eye Green Local Nature Reserve.
Orton Pit is a 145.8-hectare (360-acre) biological Site of Special Scientific Interest on the southern outskirts of Peterborough in Cambridgeshire. It is also a Special Area of Conservation
Upware North Pit is a 1.1-hectare (2.7-acre) biological Site of Special Scientific Interest north-west of Wicken in Cambridgeshire.
Orwell Clunch Pit is a 1.8-hectare (4.4-acre) biological Site of Special Scientific Interest on the northern outskirts of Orwell in Cambridgeshire. It is owned by Orwell Parish Council and managed by the Clunch Pit Management Trust.
Lattersey Field is an 11.9 hectare Local Nature Reserve in Whittlesey in Cambridgeshire. It is owned by Fenland District Council and managed by the Wildlife Trust for Bedfordshire, Cambridgeshire and Northamptonshire.
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.
Birch Spinney and Mawsley Marsh is a 12.3 hectare biological Site of Special Scientific Interest north-west of Broughton in Northamptonshire.
Bugg's Hole Fen is a 3.7-hectare (9.1-acre) biological Site of Special Scientific Interest north-west of Thelnetham in Suffolk.
Great Bowden Borrowpit is a 2.4-hectare (5.9-acre) biological Site of Special Scientific Interest north of Market Harborough in Leicestershire.
Cave's Inn Pits is a 5.8-hectare (14-acre) biological Site of Special Scientific Interest south-west of Shawell in Leicestershire.
Barrow Gravel Pits is a 35.6 hectares biological Site of Special Scientific Interest in Barrow upon Soar in Leicestershire.
Holborough to Burham Marshes is a 149.8-hectare (370-acre) biological Site of Special Scientific Interest Kent. Holborough Marshes and Burham Marsh are managed by the Kent Wildlife Trust.
East Walton and Adcock's Common is a 62.4-hectare (154-acre) biological and geological Site of Special Scientific Interest south-east of King's Lynn in Norfolk. It is a Geological Conservation Review site and part of Norfolk Valley Fens Special Area of Conservation
Papercourt Marshes is a 10-hectare (25-acre) nature reserve in the south-east of the borough of Woking in Surrey. It is managed by the Surrey Wildlife Trust. A roughly 50 hectares lake and associated surrounds, including the marshes totalling 20.0 hectares is designated a biological Site of Special Scientific Interest as Papercourt.
