Kilglass Lough is a freshwater lake in the west of Ireland. It is located in north County Roscommon.GeographyKilglass Lough measures about 4km long and 1km wide. It is located about 10km northeast of Strokestown. The lake is part of a system of lakes collectively known as the Strokestown Lakes.Natural historyFish species in Kilglass Lough include pike, bream, roach, tench and rudd.