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Vallis Vale () is a 23.9
hectare The hectare (; SI symbol: ha) is a non-SI metric unit of area equal to a square with 100- metre sides (1 hm2), or 10,000 m2, and is primarily used in the measurement of land. There are 100 hectares in one square kilometre. An acre is ...
biological and
geological 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 o ...
near
Great Elm Great Elm is a village and civil parish between Mells and Frome in the Mendip district of Somerset, England. The parish includes the hamlet of Hapsford. History The name Great Elm was recorded as ''Telma'' in the Domesday Book of 1086, and th ...
in
Somerset ( en, All The People of Somerset) , locator_map = , coordinates = , region = South West England , established_date = Ancient , established_by = , preceded_by = , origin = , lord_lieutenant_office =Lord Lieutenant of Somerset , lord_ ...
, notified in 1952. Vallis Vale is an
ancient woodland In the United Kingdom, an ancient woodland is a woodland that has existed continuously since 1600 or before in England, Wales and Northern Ireland (or 1750 in Scotland). Planting of woodland was uncommon before those dates, so a wood present in 16 ...
site and supports an Ash-Wych
Elm Elms are deciduous and semi-deciduous trees comprising the flowering plant genus ''Ulmus'' in the plant family Ulmaceae. They are distributed over most of the Northern Hemisphere, inhabiting the temperate and tropical-montane regions of North ...
stand type with a restricted distribution in Britain. Vallis Vale exposes some of Britain's most classic rock outcrops, exhibiting several of the most easily demonstrated examples of
angular unconformity An unconformity is a buried erosional or non-depositional surface separating two rock masses or strata of different ages, indicating that sediment deposition was not continuous. In general, the older layer was exposed to erosion for an interval ...
available. A nationally important research and educational locality, of great renown for the part it has played in the historical development of
geological Geology () is a branch of natural science concerned with Earth and other astronomical objects, the features or rocks of which it is composed, and the processes by which they change over time. Modern geology significantly overlaps all other E ...
science.


Sources


English Nature citation sheet for the site
(accessed 10 August 2006)


External links


English Nature website
(SSSI information) Sites of Special Scientific Interest in Somerset Sites of Special Scientific Interest notified in 1952 Unconformities Geology of Somerset {{Somerset-geo-stub