Archaeological mitigation undertaken by Headland Archaeology (UK) Ltd at Bicker Fen, Lincolnshire, uncovered the remains of two distinctly different enclosure systems situated on a raised roddon (the dried raised bed of a watercourse). The earliest of these systems was characterised by a series of inter-linked enclosures that formed part of a larger complex farmstead developing around the mid-2nd century AD. The enclosure system subsequently evolved through phases of maintenance and expansion, potentially following changes in agricultural practice or as a result of environmental influences. Features in the northern part of the excavation provide some evidence for industrial activity, including iron smithing and bone working, within the settlement. Zooarchaeological evidence, however, suggests that the main economic focus of this rural community was beef production. It seems that the farmstead remained occupied until at least the 4th century AD, with radiocarbon dates suggesting continued activity of some kind into the 5th century. The Saxon field system was situated to the east of the Roman settlement and is geographically independent. The system is less substantial in nature than the Roman enclosures, characterised by curvilinear boundaries and irregular enclosure sizes. Radiocarbon dating suggests that activity took place between the 6th and 10th centuries AD. During this phase, the focus appears to have been pastoralism. This, together with the transient nature of the system and many maintenance phases, suggests seasonal or otherwise ad hoc land use away from the core of any settlement.