The Cambridge Archaeological Unit (CAU) undertook the archaeological monitoring of the instillation of a replacement water main pipeline at Walesby Hill, Lincolnshire, by Anglia Water and its Agents between August 1st and August 10th 2009. The pipeline commenced at Walesby Hill and continued in a south westerly direction towards Walesby. The monitoring recorded the presence of several intrusive features related to a complex of enclosures and trackways previously observed in a major aerial survey of the Lincolnshire Wolds. The features are probably a farmstead of the early Romano-British period.