Counties
|
Answer
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Gloucestershire, Wiltshire, Oxfordshire, Berkshire, Buckinghamshire, Surrey, London, Kent, Essex.
|
Thames
|
Northamptonshire, Buckinghamshire, Bedfordshire, Cambridgeshire, Norfolk.
|
Great Ouse
|
Gloucestershire, Wiltshire, Somerset, Bristol.
|
Avon
|
Powys, Shropshire, Worcestershire, Gloucestershire.
|
Severn
|
Greater Manchester, Cheshire, Merseyside.
|
Mersey
|
Northamptonshire, Cambridgeshire, Lincolnshire, Norfolk.
|
Nene
|
Staffordshire, Derbyshire, Leicestershire, Nottinghamshire, Lincolnshire, Yorkshire.
|
Trent
|
Dorset, Wiltshire, Somerset.
|
Stour
|
Northumberland, Durham, Tyne and Wear.
|
Derwent
|
|