Working with the Clwydian Range Archaeological Group an excavation below Moel Arthur Hill Fort discovered a range of highly unusual stone tools. These were made on the local limestone and all have marked pitting on at least one end suggesting they were used for pounding something hard. One possibility is that they were used as pecking tools to produce rock art. They were recovered from the base of a palaeo-channel suggesting they may have been deliberately deposited in this wet context