Hillcollins Pit or Furneux Pelham Gravel Pit is a 0.2-hectare (0.49-acre) geological Site of Special Scientific Interest near Furneux Pelham in Hertfordshire. The local planning authority is East Hertfordshire District Council. it was identified as a site of national importance in the Geological Conservation Review in 1988. [1] [2] [3]
This is a disused gravel pit which exposes the Westland Green Gravels, which were laid down by the ancestral River Thames 1.6 to 1.8 million years ago. At this time the Thames flowed from Oxford through the Goring Gap to Norwich, and the Gravels show the ancient course of the river. As the original site where the Gravels were identified is now completely degraded, Hillcollins Pit is now considered the type site for the Westland Green Gravels, and is of considerable importance in reconstructing the evolution of the geography of southern Britain. [1] [4]
There is access to the site from a track between Furneux Pelham and Gravesend.
Brimpton Pit is a 1.6-hectare (4.0-acre) geological Site of Special Scientific Interest west of Aldermaston in Berkshire. It is a Geological Conservation Review site.
Westwood Quarry is a 0.07 hectares geological site of Special Scientific Interest west of Watford in Hertfordshire. It was notified in 1987 under the Wildlife and Countryside Act 1981. The planning authority is Three Rivers District Council. It is a Geological Conservation Review site.
Wansunt Pit is a 1.9-hectare (4.7-acre) geological Site of Special Scientific Interest in Dartford Heath between Crayford in the London Borough of Bexley and Dartford in Kent. It is also a Geological Conservation Review site. It is important geologically because it exposes the Dartford Heath Gravel, and the relationship of this exposure to the Swanscombe sequence and the Thames Terraces is a controversial issue in Thames Pleistocene studies. The site is part of Braeburn Park, a nature reserve managed by the London Wildlife Trust.
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.
Downfield Pit is a 3.6-hectare (8.9-acre) geological Site of Special Scientific Interest near Ware in Hertfordshire. It is in the Geological Conservation Review in the Thames Pleistocene section, and the local planning authority is East Hertfordshire District Council.
Little Heath Pit is a 0.3-hectare (0.74-acre) geological Site of Special Scientific Interest at Little Heath near Potten End in Hertfordshire. It is part of the Ashridge Estate, owned by the National Trust, and the local planning authority is Dacorum Borough Council. It is listed in the Geological Conservation Review.
Oughtonhead Lane is a 0.9-hectare (2.2-acre) geological Site of Special Scientific Interest in Hitchin in Hertfordshire. The local planning authority is North Hertfordshire District Council. The site has been identified as of national importance in the Geological Conservation Review.
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.
Highlands Farm Pit is a 0.6-hectare (1.5-acre) geological Site of Special Scientific Interest in Henley-on-Thames in Oxfordshire. It is a Geological Conservation Review site.
Ardleigh Gravel Pit is a 1.2-hectare (3.0-acre) geological Site of Special Scientific Interest south of Ardleigh in Essex. It is a Geological Conservation Review site.
Wivenhoe Gravel Pit is a 2.1-hectare (5.2-acre) geological Site of Special Scientific Interest north of Wivenhoe in Essex. It is a Geological Conservation Review site.
Holland-on-Sea Cliff is a 0.1-hectare (0.25-acre) geological Site of Special Scientific Interest in Holland-on-Sea, north-west of Clacton-on-Sea in Essex. It is a Geological Conservation Review site.
St Osyth Pit is a 0.1-hectare (0.25-acre) geological Site of Special Scientific Interest north of St Osyth in Essex. It is a Geological Conservation Review site.
Lofts Farm Pit is a 4.5-hectare (11-acre) geological Site of Special Scientific Interest in Heybridge, a suburb of Maldon in Essex. It is a Geological Conservation Review site.
Newney Green Pit is a 0.07-hectare (0.17-acre) geological Site of Special Scientific Interest west of Writtle in Essex. It is a Geological Conservation Review site.
Holton Pit is a 1.6-hectare (4.0-acre) geological Site of Special Scientific Interest east of Halesworth in Suffolk. It is a Geological Conservation Review site.
Waldringfield Pit is a 0.8-hectare (2.0-acre) geological Site of Special Scientific Interest between Martlesham Heath and Waldringfield in Suffolk. It is a Geological Conservation Review site.
Sturry Pit is a 0.7 hectares geological Site of Special Scientific Interest north-east of Canterbury in Kent. It is a Geological Conservation Review site.