outer borough of London, forming part of its northeastern perimeter. Havering belongs to the historic county of Essex. It was created in 1965 from the former borough of Romford and the urban district of Hornchurch, and it includes such areas as (roughly from north to south) Havering-atte-Bower, Noak Hill, Collier Row, Chase Cross, Harold Hill, Harold Park, Marks Gate (in part), Mawney Park, Gidea Park, Harold Wood, Romford, Squirrel's Heath, Emerson Park, Hornchurch, Upminster, Cranham, Hacton, Corbets Tey, North Ockendon (in part), South Hornchurch, Rainham, and Wennington. The Hornchurch Marshes, Rainham Level, and Wennington Level front the River Thames on the southern edge of the borough.
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