A number of flint implements were found after the discovery of an Iron Age Hillfort in 1939 at High Rocks. The site was subsequently investigated between 1954-6. Four phases of use were suggested dating the site to the Mesolithic and Neolithic periods. Amongst the finds were a large quantity of Mesolithic flints including cores, blades/flakes, microliths, axes and scrapers. Seven hearths were also recorded and were attributed to the late Mesolithic period on the basis of Carbon14 dating. A Neolithic leaf shaped arrowhead and mid-Neolithic pottery were also recovered and possible post hole structures, perhaps from a temporary shelter, were identified. On the basis of the evidence it is thought that the Rock Shelters were only intermittently occupied rather than a continuous settlement.