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EFC Centre at Wat Tyler Country ParkOur centre is available for visits on a pre-booked basis on Wednesdays between 10am - 4pm. The Club’s activities and displays are also usually open to the public on the first Saturday of the month 11am - 4pm.

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About the Essex Field Club
Essex Field Club
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Geology Site Account

A-Z Geological Site Index

Edgars Farm Boulders, LAMARSH, Braintree District, TL89453540, Potential Local Geological Site

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Site category: Boulders - sarsen

Site name: Edgars Farm Boulders

Grid reference: TL 8945 3540

Brief description of site:

Two large sarsen stones outside Edgars Farm, Lamarsh. They are at least one metre long but the size has not yet been recorded.

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Summary of geological interest

Sarsens are extremely hard boulders of sandstone formed around 55 million years ago when the climate of Britain was hot and a layer of sand beneath the surface of the ground became cemented with quartz. They are thus very resistant to erosion and have survived the rigours of the Ice Age. They probably originated on the chalk downland of south Cambridgeshire and after retreat of the ice they became concentrated in river valleys such as The Stour.



Edgars Farm boulders. Photo: Maria Medlycott

 

Boulder no.2 looking west
Boulder no.2 looking west
Boulder no.1 looking west
Boulder no.1 looking west

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