Nenagh, the largest town in northern County Tipperary, lies to the west of the Nenagh River, which empties into Lough Derg at Dromineer, 9 km to the north-west, a popular centre for sailing and other water sports. The Silvermine Mountain range lies to the south of the town, with the highest peak being Keeper Hill () at 694 m. The Silvermines have been intermittently mined for silver and base metals for over seven hundred years. Traces of 19th century mine workings remain.