Terryglass Castle

Situated near the north-eastern shores of Lough Derg, the fortified castle at Terryglass (Irish: Tír Dhá Glás, Land of Two Streams)[1] stands today as an impressive ruin. Prior to the construction of the castle, a monastic community existed here established by St. Columba in the 6th This Columba Mac Crimthain of Tír Dhá Glás is not to be confused with the more famous Irish saint known as Columb...