Rook Clift 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 ...

east of South Harting in West Sussex. It is also a Special Area of Conservation. A stream rises in this steep sided valley, which has semi-natural ancient woodland on its slopes. The canopy is dominated by a nationally scarce tree, large leaved lime, with other trees including

beech Beech (''Fagus'') is a genus of deciduous trees in the family Fagaceae, native to temperate Europe, Asia, and North America. Recent classifications recognize 10 to 13 species in two distinct subgenera, ''Engleriana'' and ''Fagus''. The ''Engle ...

and ash. The rich mollusc fauna includes ''

Helicodonta obvoluta ''Helicodonta obvoluta'' is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Helicodontidae.MolluscaBase eds. (2021). MolluscaBase. Helicodonta obvoluta (O. F. Müller, 1774). Accessed through: Worl ...

'', which is a Red Data Book species.

References

{{SSSIs West Sussex Sites of Special Scientific Interest in West Sussex Special Areas of Conservation in England Forests and woodlands of West Sussex