Essex Field Club on Facebook

Video about the Club

Furcula bifida
find out more... Furcula bifida 2 Copyright: Graham Ekins

Essex Field Club
Essex Field Club
registered charity
no 1113963
HLF Logo A-Z Page Index

We are normally open to the public at our centre at Wat Tyler Country Park every Saturday, Sunday and bank holiday between 11am and 4pm. We are also usually open on Wednesdays between 10am and 4pm.

Spring recording Record your Robin Record Common Frog Rana temporaria
Record Alexanders Smyrnium olusatrum Record Tawny Mining Bee Andrena fulva
Record Dark-edged Bee Fly Bombylius major
Record Spring Flower Bee Anthophora plumipes
Record cuckoo bee Melecta albifrons

Geology Site Account

Ugley Park Quarry SSSI , UGLEY , Uttlesford District, TL519280, Site of Special Scientific Interest

hide/show OS map  

Site name: Ugley Park Quarry SSSI

Grid reference: TL 519 280

Brief description of site:

Ugley Park Quarry has exposures of glacial gravels and boulder clay (till) related to the Anglian glaciation, 450,000 years ago, the coldest period of the Ice Age when an ice sheet reached as far as south Essex. The Site of Special Scientific Interest (SSSI) relates to two representative sections in the northern part of the pit.



Ugley Park Quarry (also known as Hall’s Quarry) has exposures of glacial gravels, silts and boulder clay relating to the Anglian glaciation. It is important for demonstrating the stratigraphical relationship of the glacial deposits and meltwater deposits and for correlating these with the river sequences in the Thames catchment. The gravels at Ugley Quarry are unusually rich in non-durable, local and far-travelled material indicating that they were deposited very close to the edge of the ice.

The complex sequence of sands, gravels and boulder clay at this quarry shows that, during the Anglian cold stage (450,000 years ago), the Thames catchment was repeatedly invaded by ice from the north or north-west. The evidence from Ugley is critical in demonstrating that there were at least four of these ice advances, each one depositing a characteristic boulder clay.

The pit has been partly infilled. Two representative sections were intended to be maintained in the northern part of the pit.

There are several sarsen stones at the entrance to the quarry.

Glacial sands and gravels at Ugley Quarry in 1980. Photo © British Geological Survey (P212594).


if you have an image please upload it

Reference: Bridgland 1994 (p.134-128)

Geology Site Map
A-Z Geological Site Index