This hillfort is in Pulpit Wood on the summit of Pulpit Hill in Great Kimble, about 3/4 of a mile south-east of St Nicholas' church. It is above ordnance datum. It has never been excavated and its precise date is unknown, though almost certainly built during the 1st millennium B.C. Hillforts are usually attributed to the Iron Age, but there are a series of hillforts at intervals along the Chiltern ridge and that at Ivinghoe Beacon, which is not far away, has been excavated and found to have been built in the late Bronze Age.