Borough Hill: large multivallate hillfort, Sawston

History of Borough Hill

Listed building on Heritage at Threat Register

Borough Hill is the second largest of the seven hillforts known in Cambridgeshire. The location of the site close to the course of a river is a common characteristic of East Anglian hillforts, although the site is unusual in this context in having more than one line of defences. Borough Hill lies towards the eastern end of a series of defended sites which developed across the chalk uplands of the Chiltern Hills in the Late Bronze Age and Iron Age.

https://archaeologydataservice.ac.uk/archiveDS/archiveDownload?t=arch-1893-1/dissemination/pdf/englishh2-373049_1.pdf