Whitehorse Hill is a hill in the

Berkshire Downs The Berkshire Downs are a range of chalk downland hills in South east England split between the counties of Berkshire and Oxfordshire. They are part of the North Wessex Downs Area of Outstanding Natural Beauty. The western parts of the downs ...

in Oxfordshire, England, west of

Wantage Wantage () is a historic market town and civil parish in Oxfordshire, England. Although within the boundaries of the historic county of Berkshire, it has been administered as part of the Vale of White Horse district of Oxfordshire since 1974. T ...

. At , it is the highest point in Oxfordshire.

Uffington Castle Uffington Castle is an early Iron Age (with underlying Bronze Age) univallate hillfort in Oxfordshire, England. It covers about 32,000 square metres and is surrounded by two earth banks separated by a ditch with an entrance in the western end. A ...

lies on the summit of the hill, and the

Uffington White Horse The Uffington White Horse is a prehistoric hill figure, long, formed from deep trenches filled with crushed white chalk. The figure is situated on the upper slopes of White Horse Hill in the English civil parish of Uffington (in the cer ...

is on the hill's northern slope. The hill and an adjacent area below, including Dragon Hill and The Manger, make up a biological and geological Site of Special Scientific Interest. The Manger, a

dry valley A dry valley may develop on many kinds of permeable rock, such as limestone and chalk, or sandy terrains that do not regularly sustain surface water flow. Such valleys do not hold surface water because it sinks into the permeable bedrock. There ...

below the hill, is a

Geological Conservation Review The Geological Conservation Review (GCR) is produced by the UK's Joint Nature Conservation Committee and is designed to identify those sites of national and international importance needed to show all the key scientific elements of the geological ...

site. It provides evidence of

solifluction Solifluction is a collective name for gradual processes in which a mass moves down a slope ("mass wasting") related to freeze-thaw activity. This is the standard modern meaning of solifluction, which differs from the original meaning given to it ...

(slow slipping of soil downhill due to repeated freezing and thawing) during at least one cold stage of the

Pleistocene The Pleistocene ( , often referred to as the ''Ice age'') is the geological epoch that lasted from about 2,580,000 to 11,700 years ago, spanning the Earth's most recent period of repeated glaciations. Before a change was finally confirmed in ...

. The site has unimproved chalk grassland with a rich variety of flora, particularly in former chalk quarries. Grasses include

upright brome ''Bromus erectus'', commonly known as erect brome, upright brome or meadow brome, is a dense, course, tufted perennial grass. It can grow to . Like many brome grasses the plant is hairy. The specific epithet ''erectus'' is Latin, meaning "erect". ...

and sheep’s fescue. The

Ridgeway National Trail The ancient tree-lined path winds over the downs countryside The Ridgeway is a ridgeway or ancient trackway described as Britain's oldest road. The section clearly identified as an ancient trackway extends from Wiltshire along the chalk r ...

crosses the hill south of Uffington Castle.

References

{{SSSIs Oxfordshire Hills of Oxfordshire Sites of Special Scientific Interest in Oxfordshire Geological Conservation Review sites Vale of White Horse

See also

References