The Roman Rig is a defensive dyke built to defend against attack from the south. It runs from Sheffield, past Templeborough and carries on almost to Doncaster. If this is a Brigantian dyke it would certainly add weight to Websters definition of the Roman border in the period.
The Cleave dyke system is several Dykes which combine to create a boundary of between 9 and 18 kilometres running north south to the west of Thirsk.
Tor Dyke appears to have been attributed to Venutius which dates it of the period AD 52 – 70. The presence of a legionary size marching camp a few miles to the southwest at Malham certainly indicates an active role in the Roman advance of AD 70. However, given the lack of published research so far a clear picture has yet to emerge.
