Lough Gowna

Lough Gowna is a fresh water lake which is the uppermost lake on the River Erne. It is located on the border between County Longford and County Cavan, with the largest part of the lake being in County Longford.

Lough Gowna is a moraine-dammed lake formed at the end of the last glaciation, and owes its complex indented shape to the underlying drumlin landscape. This results in a large number of bays and inlets on the lake, often connected by narrow channels. The river Erne enters the system in a western direction into the easternmost part of the lake and exits northward through County Cavan.