At the southern end of the island lie the ruins of St Columba's Church. This was once an important centre of religion, being cited in a report of 1549 as the main place of worship for the parish of Lochs. There was probably a church there from about 800 AD, built by St Columba's followers. St Columba died on Iona in 597 AD. The cemetery was in use until 1878. Eilean Chaluim Chille is protected by Historic Scotland as an ancient monument.