vicinity of the megaliths, at Burham. The enclosure consists of two closely spaced concentric ditches, surrounding an oval-shaped area measuring 5 ha. It is thus the largest known causewayed enclosure in Kent and one of the largest known in Britain. Excavation in 2009–10 unearthed dating evidence showing that the enclosure was in use from circa 3700 to 3400 BCE. The Medway Megaliths are not the only Early Neolithic mound monuments in modern Kent, with another group of long barrows being located around the Stour valley. Here, three monuments are still evident: Julliberrie's Grave, Boughton Aluph barrow, and Elmstead barrow. These Stour monuments primarily differ from their Medway counterparts in that they have not been built using sarsens, and are thus non-megalithic, unchambered long barrows. The decision by the builders of these Stour Long-Barrows to avoid using stone as a building material was likely deliberate, for sarsens are naturally present in the local area and could have been obtained without too much trouble. Later history Throughout later prehistory, the landscape around the Medway megaliths continued to be used for ritual and ceremonial purposes, including rich Bronze Age burials, gold deposits in the Late Bronze Age, an Iron Age cemetery with several rich bucket burials and a potential Romano-British temple on Blue Bell Hill. Evidence for a settlement dating to the Late Bronze Age and Early Iron Age has been identified on the western side of the valley by the White Horse Stone, as evidenced by postholes indicating possible roundhouses and numerous four-post structures, alongside pits that might originally have been used for storage. In the Medieval period, the Pilgrim's Way track was constructed close to the megaliths. In the latter 13th century, the Medway Megaliths were systematically damaged, although this was accomplished in different ways. Some of the chambers were completely toppled, while others were left standing. The reasons for this destruction are not entirely clear. Ashbee suggested that it was due to the Christian Church's renewed attempt to consolidate its control over non-Christian beliefs and practices, in conjunction with the Northern Crusade that was supported by both Edward I and Edward III of England. He also suggested that the construction of St. Stephen's Church at Tottington, St. Michael's Church at Cosington, and St. Margaret's Church at Addington, all in the vicinity of the megaliths, was potentially part of this same process. Antiquarian and archaeological investigation From the late 16th century,