Harrow Weald SSSI

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Harrow Weald
Site of Special Scientific Interest
Harrow Weald SSSI.JPG
Area of SearchGreater London
Grid referenceTQ147929
Area3.7 hectares
Location mapMagic Map

Harrow Weald SSSI is a 3.7 hectare (9 acre) geological Site of Special Scientific Interest in Harrow Weald in the London Borough of Harrow. It was formerly part of the Stanmore and Harrow Weald Commons and Bentley Priory SSSI.[1][2] It is a Geological Conservation Review site.[3]

It provides the most complete exposure of Pleistocene gravel beds above the Claygate Beds, the youngest layer of London Clay. They were formerly thought to have been of marine origin but recent research has cast doubt on this view. It is considered a key site for further studies.[1]

There is no public access but it can be viewed from Common Road and Harrow Weald Common.

See also[edit]


  1. ^ a b Natural England, Harrow Weald citation
  2. ^ "Map of Harrow Weald SSSI". Natural England.
  3. ^ "Harrow Weald Common (Quaternary of the Thames)". Joint Nature Conservation Committee. Retrieved 15 January 2016.

Coordinates: 51°37′24″N 0°20′41″W / 51.6233°N 0.3447°W / 51.6233; -0.3447