At the northern tip of the Dunstable Downs, lies the Five Knolls Barrow Cemetery. First described by antiquarian William Stukeley in the 18th century, the site contained burials from the late Neolithic to Saxon eras prior to excavation. They include the 'Five Knolls Woman', aged between 35 - 40 years, buried on her side with a flint knife. A , buried with a number of echinoid fossils were also found, dating approximately from the early Bronze Age. The site is also known for the deviant burial of executed Saxon criminals.