Where is the setting of The Wind in the Willows?

The Wind in the Willows is set in an idealized version of
the English countryside.  It has no relationship to an actual place in England; rather,
the action takes place in and around the types of areas that would be frequented by the
characters portrayed by Toad, Mole, Badger and the others.  Kenneth Grahame retired from
working at The Bank of England in 1908, the year of The Wind in the Willows first
publishing, and moved to the English countryside.  There he delighted in spending time
on and near the River Thames.