城堡山

Wittenham Clumps is the common name for a pair of wooded chalk hills in the Thames Valley, in the civil parish of Little Wittenham, in the historic county of Berkshire, although since 1974 administered as part of South Oxfordshire district.The higher of the two, Round Hill, is 390 feet (120 m) above sea-level.

The Poem Tree was a beech tree with a poem carved into it by Joseph Tubb, located on Castle Hill at Wittenham Clumps in Oxfordshire, England. The tree, which was believed to be around 300 years old, collapsed through a combination of long-standing rot and inclement weather in July 2012. It died in the 1990s and after that, rotted completely while standing.