Possibly the base for a standing cross.

We made our way down from the summit ridge of Eileach an Naoimh to the site of what is reputed to be the site of  the grave of Eithne who was the mother of St Columba.

St Columba had followed St Brendan from Ireland, bringing Christianity to the west coast of Scotland. He founded a monastery and church on Iona. However, it thought that he and the monks came to Eileach an Naoimh on religious retreats. They knew the island as Hinba.