In July 1989, an aerial survey captured a set of linear cropmarks forming a right-angle cross, suggesting the junction of four ancient fields, with two additional parallel marks flanking the main north-south line. Cropmarks appear when buried features such as ditches, walls, or banks affect how crops grow above them: buried ditches retain more moisture and produce lusher, taller growth, while compacted foundations do the opposite. The result, invisible at ground level, can resolve itself into clear geometric patterns when seen from altitude, particularly during dry summers when the contrast between soil types is sharpest.

The features recorded at Scart fit the pattern of a field system, a term that covers the organised division of agricultural land into discrete plots, often bounded by earthen banks, stone walls, or ditches. Such systems can date from anywhere between the Bronze Age and the early medieval period, and without excavation it is difficult to assign a more precise date to the Scart example. What the aerial photograph does suggest is a degree of deliberate planning: the right-angle intersection implies that whoever laid out these boundaries was working to a consistent orientation, with the north-south axis clearly dominant. The flanking marks running parallel to that main feature hint at a more complex arrangement than a simple four-field cross would imply.