 The Tower is of solid stone.The building of it on Carhoo (Ceathru) hill, 600 feet above sea level, provided work during the Great Famine, at the instigation of Reverend Charles Gayer, Leader of the Protestants, in an attempt to win converts.Twenty-seven feet was its original height, but at the turn of the century, the old hand was removed and an extra thirteen feet of stone was added to its height.