Our knowledge of human settlement within Sedgeford during the prehistoric period remains scant, with no known evidence for settlement occurring prior to the Late Iron Age. However, close to 600 pieces of worked flint have been recovered from the Boneyard/Reeddam site, although none were recovered from sealed contexts. Some of the most distinctive pieces found from the site are microliths dating from the Late Mesolithic period. The Boneyard/Reeddam site is located towards the bottom of the Heacham River valley, which would have been a much more substantial feature in the landscape during this period, and may well have been the site of a temporary hunting camp during this period.