Croker's Hole is a biological

Site of Special Scientific Interest A Site of Special Scientific Interest (SSSI) in Great Britain or an Area of Special Scientific Interest (ASSI) in the Isle of Man and Northern Ireland is a conservation designation denoting a protected area in the United Kingdom and Isle of ...

north of

Upper Lambourn Upper Lambourn is a small village in the county of Berkshire, England. The village is situated in the civil parish of Lambourn , and is 1.2 miles (2 km) to the north-west of the village of Lambourn, just off the Lambourn to Shrivenham road. ...

Berkshire Berkshire ( ; in the 17th century sometimes spelt phonetically as Barkeshire; abbreviated Berks.) is a historic county in South East England. One of the home counties, Berkshire was recognised by Queen Elizabeth II as the Royal County of Berk ...

. The site is a narrow grassland valley, which is one of the most florally diverse chalk downlands in Berkshire. The dominant plants are upright brome and tor-grass, and it is the only site in the county which has the nationally scarce

bastard toadflax Bastard toadflax or bastard-toadflax is a common name for a plant which may refer to: *''Comandra'' *''Thesium humifusum ''Thesium humifusum'' is a species of hemiparasitic flowering plant in the family Santalaceae found in western Europe and nor ...

. There is access from a footpath from Seven Barrows to Hangman's Stone.

References

{{SSSIs Berks Sites of Special Scientific Interest in Berkshire Lambourn