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Map: Great Britain local authorities by Flourish teamBoundaries come from the Office for National Statistics Local Authority Districts (December 2017) Full Extent Boundaries in Great Britain. Contains National Statistics data © Crown copyright and database right 2017. Contains OS data © Crown copyright and database right 2017. Downloaded 2018/02/01 from http://geoportal.statistics.gov.uk/datasets/local-authority-districts-december-2017-full-extent-boundaries-in-great-britain.