Greater Bristol is a term used for the conurbation which contains and surrounds the city of Bristol in the South West of England. There is no official "Greater Bristol" authority, but the term is sometimes used by local, regional and national authorities, and others as a synonym for either the "Bristol Urban Area" or a wider area of the former County of Avon, and by some, TfGB, to refer to the Province of Bristol as defined by C. B. Fawcett (1919) or Derek Senior (1969).