This geophysical survey was undertaken as part of an archaeological field evaluation of the proposed wind farm site at Rotsea near Hutton Cranswick in the East Riding of Yorkshire.The purpose of the survey was to test for evidence of archaeological sites or remains, and so inform the EIA for the project, which is currently in progress. The survey has produced findings of potential archaeological significance at locations which correspond broadly to the cropmark evidence. An additional clearly defined complex system of rectilinear enclosures containing occupation features was detected on a non-alluvial soil within the Turbine 1 survey area.