This small granite building is The Holy Trinity Church of Ireland. It was built in 1863 and is still in use today. It is located at the main entrance to The Rock of Dunamase which is one of the most historic sites in Ireland. These ruins nearby date back to the late medieval period but the site probably dates back to the 2nd century ad. From ‘The Rock’ there are splendid views across the valley to Portlaoise and the Slieve Bloom mountains.. There are some interesting headstones beside the church for those who enjoy exploring graveyards.