Detailed magnetic survey (magnetometry) was chosen as the most efficient and effective method of locating the type of archaeological anomalies which might be expected at this site. All survey techniques followed the guidance set out by CIfA (2020) and the European Archaeology Council (EAC) (2016). Bartington Cart System Traverse Interval 1.0m Sample Interval 0.125m A detailed magnetometer survey was conducted over approximately 3 hectares off Horseshoe Road, Spalding, and it has not identified any anomalies of definite archaeological interest, aside from weak evidence for ridge and furrow cultivation. Several weak linear trends and discrete anomalies are of uncertain origin; the proximity to Iron Age and Roman remains suggests an archaeological explanation cannot be entirely ruled out, though such an interpretation is tentative at best, and they are more likely to relate to natural or agricultural effects. Modern ploughing effects, a former track and areas of disturbance likely associated with the former railway to the south have also been identified, along with bands of natural magnetic variation.
Rebecca Fradgley (Wed,) studied this question.