Norwood Ridge

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Extract from London's relief map showing how the relief covers the south of the London Borough of Southwark, overspills with crests to all other three sides and has areas of similar size surrounding which are nearly flat. In the north-east Blackheath/Shooters Hill is visible and in the far south a dip slope of the North Downs.

The Norwood Ridge is a 10-square-mile (26 km²) rectangular upland which occupies the geographical centre of south London, centred 5 miles (8 km) south of London Bridge. Beneath its topsoil it is a ridge of London Clay that is capped on all sides (including as isolated knolls in the north) with remaining natural gravel deposits mixed with some sandy soil, which in the South Thames basin is a material known as the Claygate Beds.^[1][2]