Monument record 0952802000 - Upper Palaeolithic and Mesolithic at Denham Area 4

A significant Early Mesolithic in situ scatter associated with bone remains was located on the western slope of the Rusholt Brook gravel island, within test pit 276 (later expanded to test pit 597). A small number of worked flints, including blades, flakes and a projectile point as well as wild boar bones and a tusk, were recovered from a grey silty clay alluvium deposit. This deposit was 0.3m - 0.35m in depth and was laid directly below the topsoil and overlay a pale yellowish brown alluvium. A radiocarbon date of 9131+/-45 BP (NZA-19005), or 8530-8260 cal BC, was obtained from the boar's tusk, dating the assemblage to the early post-glacial, which was consistent with the technologically diagnostic traits of the worked flint assemblage. The artefacts and faunal material did not occur in a single 'physical' horizon within the deposit but randomly throughout (B1).