Thorley Brook was once a navigable creek leading off the Western Yar almost as far as Thorley Manor until it silted up and a causeway was built across its entrance where a tide mill was established in the mid 17th century and the current one at the end of the 18th century.
It captures water through a number of tributaries in the Cranmore, Thorley and Wellow area. We could tell you loads more about Thorley Brook, but we are no going to. Instead we will send you to the Yarmouth and Thorley Voices – a wonderful website with stacks of information on Thorley Brook and Thorley Marshes.