Headland Archaeology (UK) Ltd undertook a geophysical (magnetometer) survey, covering 212 hectares of land along the proposed route of the A47 extension from North Tuddenham to Easton, Norfolk. The survey was undertaken in order to provide information on the archaeological potential of the Proposed Scheme and to inform the Environmental Statement (ES) submitted as part of the Development Consent Order (DCO). Across the Geophysical Survey Area (GSA), four areas of definite archaeological activity have been recorded, two of which were previously unknown. Alongside the areas of archaeological activity, the survey has identified a series of isolated discrete and ditch anomalies that could be considered to be of possible archaeological origin as well as 15 areas of extraction and 32 former boundaries. Overall, the survey corroborates the conclusions of the scoping report and expands upon it by identifying further areas of interest. The archaeological potential of the site is considered moderate to high in the areas of archaeological activity and low to medium across the remainder of the GSA.