Castlederg

Castlederg (earlier Caslanadergy, from Irish: Caisleán na Deirge) is a village in County Tyrone, Northern Ireland. It lies on the River Derg and is near the border with County Donegal. The village has a ruined castle and two ancient tombs known as the Druid's Altar and Todd's Den. It had an estimated population of 2,935 people in 2008.