Archaeological Evaluation Report: Geophysical Survey By Magnetometry on Land at Hall Farm, Bonby, North Lincolnshire

The geophysical survey consisted of a detailed gradiometer survey of the area, totalling approximately 8 hectares. The survey area was located using a Leica GS08 RTK NetRover GPS. This accurately 3D plotted the area of investigation and tied it into the National Grid. Data collection was undertaken in a zigzag traverse pattern, using a sample interval of 0.25m and a traverse interval of 1m. The survey has identified few features of potential archaeological interest that can be confidently interpreted as being of archaeological origin. However, a pair of parallel positive anomalies along the northern edge of the site may represent a double ditched trackway, or potentially one side of a double ditched boundary or enclosure feature. The rest of the survey area was characterised by a series of very irregular positive anomalies, likely to represent a geological response, although an archaeological component to some of these anomalies cannot be discounted.