Killagoola (Irish: Cill Ogúla) is a small townland in the civil parish of Moycullen in County Galway, Ireland. It is located about 8 miles from Galway city, just off the N59 Galway–Clifden road. Its name is derived from the Irish name of Cill Ogúla, which means 'church on the shoulder' (of a hill). Indeed there is the ruins of a small church within the boundaries of Killagoola, on the largest site in the area, Crú Hill.
Ross Lake (Irish: Loch an Rois) is a freshwater lake in the west of Ireland. It is part of the Lough Corrib catchment in County Galway.
Moycullen (Irish: Maigh Cuilinn) is a Gaeltacht civil parish in the ancient barony of the same name. It is located in the western shore of Lough Corrib in County Galway, Ireland and is around 4 miles (6.4 km) north-west of the city of Galway on the road to Oughterard. The parish contains 27,294 statute acres. According to Lewis's survey of 1837, "The land is of very indifferent quality; and there is a large quantity of reclaimable waste and bog.". The parish gets its name from the church, now in ruins, that is situated around 1 mile (1.6 km) to the east of the village, in the townland of Moycullen itself.