Blewburton Hill - Credit: Wikimedia Commons
Blewburton Hill is the site of an Iron Age hillfort located in Oxfordshire, in the southeast of England. It was a univallate hillfort (with a single rampart). The area is mostly farmland with some small areas of wooded copse to the south and the northeast.Ordnance Survey 2015. The hill fort may have been occupied from the 4th century BC to the 1st century BC,Pevsner 1966, 2002, p. 74. and replaced a small settlement surrounded by a stockade, which is estimated to have been built in the 5th or 6th century BC.English Heritage 2007. Read more on Wikipedia
Source: en.wikipedia.org