It covers the top of a hill that would have provided commanding views over one of the main routes in and out of the Weald and covers an area of 50 ha. A natural spring within the fort would have provided water to the occupants making it a very attractive spot. The eastern side of the hill is very steep and so earthwork defences were constructed only on the other sides. The site is owned by the National Trust and open to the public. The Middle Palaeolithic Oldbury rock shelters are located on the eastern slopes of the hill.