[3] Steep granite cliffs rise on both sides of the lake to heights of about 300 m (1,000 ft).

[5] Lough Beagh is fed mainly by the Owenbeagh River entering at its southern end.

The Owencarrow connects the lake with its similar northern neighbour, Glen Lough.

[3] Bird life includes the migrating red-throated diver and the reintroduced golden eagle.

[6] The lake is mentioned in the Annals of the Four Masters, where in about 1540 sons of Ó Domnaill "held the crannog of Loch Veagh and from it were greatly troubling the country".