The site at Happisburgh lies on the foreshore about 1 km to the south of the village. It was first discovered by local resident Mike Chambers in 2000 when he recovered a handaxe lying in organic mud. Fieldwork by AHOB (2004) and the University of Leiden (2009-2012) have excavated the organic muds and underlying organic clays and sands for the recovery flint artefacts, fauna and flora (Ashton et al. 2008). The sediments infill a channel that lies beneath the cliffs formed of Anglian glacial sediments (MIS 12). The sediments form part of the Cromer Forest-bed Formation and have been attributed to a late Cromerian Complex age (probably MIS 13) based on the presence of Arvicola cantiana. The combination of faunal and floral remains indicates marshland on the edge of a slow-flowing river with surrounding heathland and boreal forest in a cool-temperate climate (Coope 2006; Ashton et al. 2008). The in situ flint assemblage consists of almost 300 flakes, simple flake tools, cores and a single, thin, ovate biface. The archaeological evidence also comprises humanly modified bones of rhinoceros, roe deer and bovid, indicative of butchery by humans.