The highest peak in the barony is the Scalp (380m), part of the Slieve Aughty range. Lough Derg forms the barony's eastern boundary. Three rivers flow in an easterly direction to the Lough; from north to south they are the Cappagh, the Woodford, and the Coos. The mines at Tynagh were a source of lead and zinc from the 1960s until their closure in 1981.