What is recorded here

Ballaghanea Island is a small islet in Lough Ramor, County Cavan, reached by a shallow ford when the water permits. Tradition points it as the island stronghold named in 846 AD, yet no medieval castle remains are visible there today. The stone walls and quay structures that survive appear to belong to the 19th century, when estates and agricultural activity were reshaping places around Irish lakes. The older fortress may have vanished, moved in memory to another islet, or simply surrendered its stones to time.

Ballaghanea Island is recorded as a islet in County Cavan. Its open map record supplies this location and any linked names or public references.