Two penannular anomalies in the northeast of the area have been identified as ring ditches situated approximatively c. 78m apart. These anomalies measure between c. 15 to 16m in diameter; and are located on a topographical highpoint of the surrounding area. The anomalies exhibit clearly defined edges characteristic of cut like features with magnetically enhanced fill. To the east of these ring ditches, additional anomalies with similar morphology and size have been identified, however due to their weaker magnetic signal, they have been classified as possible archaeology.

Charlotte Gaillon & Alexander C Stoddart, 2023, Geophysical Survey Report: Highfields Solar Farm, Costock, Page 13 (Unpublished document). SNT5801.