Stacks Berkshire East and Buckinghamshire South

Within the Stacks framework, the Thames Valley region is bounded to the East by the outskirts of Greater London and the M25, taking in elements of Hertfordshire, Buckinghamshire, Berkshire and Surrey.  To the South the area encompasses north-west Surrey and north-east Hampshire.  The Western boundary divides Berkshire roughly in half, taking in Reading.  And to the North the area covers south-east Oxfordshire and part of South Buckinghamshire.