Between the 21st and 23rd of July 2008 Oxford Archaeology (OA) carried out a field evaluation at Site 2, RAF High Wycombe, Buckinghamshire (NGR: SU 834 979) on behalf of Debut Services Ltd. The evaluation revealed extensive truncation within the northern extent of the site exposing colluvial deposits directly below layers of modern made ground and landscaping deposits. Intact stratigraphy was observed within the south-west extent of the development area with evidence of activity including pottery and a probable post-medieval field boundary ditch observed. The exact location of Grim's Ditch was established, outside the footprint of the proposed development, although no dating evidence was recovered from its fills.