Mole Gap to Reigate Escarpment is a 1,016.4-hectare (2,512-acre) biological and geological Site of Special Scientific Interest west of Reigate in Surrey. It is a Geological Conservation Review site and a Special Area of Conservation. Part of it is a Nature Conservation Review site, Grade I. Two small private nature reserves in the site are managed by the Surrey Wildlife Trust, Dawcombe and Fraser Down.
Netherside Stream Outcrops is a 2.9-hectare (7.2-acre) geological Site of Special Scientific Interest north-east of Haslemere in Surrey. It is a Geological Conservation Review site.
Turners Hill SSSI is a 0.2-hectare (0.49-acre) geological Site of Special Scientific Interest in Turners Hill in West Sussex. It is a Geological Conservation Review site.
West Hoathly SSSI is a 0.7-hectare (1.7-acre) geological Site of Special Scientific Interest in Sharpthorne in West Sussex. It is a Geological Conservation Review site.
Harrow Weald SSSI is a 3.7 hectare geological Site of Special Scientific Interest in Harrow Weald in the London Borough of Harrow. It was formerly part of the Stanmore and Harrow Weald Commons and Bentley Priory SSSI. It is a Geological Conservation Review site.
Harefield Pit is a 1.8-hectare geological Site of Special Scientific Interest in Harefield in the London Borough of Hillingdon. It occupies much of a partially filled-in chalk quarry. It has two entries in the Geological Conservation Review database.
Moor Mill Quarry, West is a 0.16-hectare (0.40-acre) geological Site of Special Scientific Interest in How Wood in Hertfordshire. The local planning authority is St Albans City and District Council. It was notified in 1992 as representing the former Moor Mill Quarry SSSI, which was lost to landfill operations. It is listed by the Geological Conservation Review.
Nine Acres Pit is a 20.7-hectare (51-acre) geological Site of Special Scientific Importance north-east of Leighton Buzzard in Bedfordshire. It was notified in 1986 under Section 28 of the Wildlife and Countryside Act 1981, and the local planning authority is Central Bedfordshire Council. It is a Geological Conservation Review site.
Bierton Clay Pit is a 0.07-hectare (0.17-acre) geological Site of Special Scientific Interest in Bierton in Buckinghamshire. It is listed by the Joint Nature Conservation Committee as a Geological Conservation Review site.
Stone SSSI is a 0.12-hectare (0.30-acre) geological Site of Special Scientific Interest in Stone in Buckinghamshire. It is listed by the Joint Nature Conservation Committee as a Geological Conservation Review site.
Fern House Gravel Pit is a 1.3-hectare (3.2-acre) geological Site of Special Scientific Interest in Fern, near Bourne End in Buckinghamshire. It is also a Geological Conservation Review site.
South Lodge Pit is a 0.5-hectare (1.2-acre) geological Site of Special Scientific Interest in Taplow in Buckinghamshire. It is a Geological Conservation Review site.
Warren Farm, Stewkley is a 1.5-hectare (3.7-acre) geological Site of Special Scientific Interest in Stewkley in Buckinghamshire. It is a Geological Conservation Review site.
Folkestone Warren is a 316.3-hectare (782-acre) biological and geological Site of Special Scientific Interest (SSSI) which runs along the coast between Folkestone and Dover in Kent. It is a Nature Conservation Review site and it contains three Geological Conservation Review sites and part of a fourth. An area of 83.6 hectares is a Local Nature Reserve,
Wateringbury SSSI is a 0.2-hectare (0.49-acre) geological Site of Special Scientific Interest in Wateringburym west of Maidstone in Kent. It is a Geological Conservation Review site.
Wretton SSSI is a 20.6-hectare (51-acre) geological Site of Special Scientific Interest north-east of Downham Market in Norfolk. It is a Geological Conservation Review site.
Felpham SSSI is a 1-hectare (2.5-acre) geological Site of Special Scientific Interest in Bognor Regis in West Sussex. It is a Geological Conservation Review site.
Porton Down SSSI is a 1,559-hectare (3,850-acre) biological Site of Special Scientific Interest which spans the border between Hampshire and Wiltshire in England. It is adjacent to Porton Down science park near Porton, and much of it is Ministry of Defence property which is closed to the public. It is a Nature Conservation Review site, Grade I, a Special Area of Conservation and a Special Protection Area.
