I could find nothing at this location although both Coflein and the Gwynedd Archaeological Trust list an arrow stone at SH 6937 7228.
I also couldn’t find the stone from the Roman period which the GAT list at SH 6936 7231 and which Coflein describes as: “Incised stone at the head of Alan Glan Sais near the Roman road. The surface of a flat rock 3ft 8ins by 2ft 5ins bears a design consisting of three concentric squares, the centre of each of the four sides of this design being cut and measures about 9ins square.”