The parish of Aghamore is situated at the north eastern corner of the Archdiocese of Tuam. This corner is formed by the junction of the diocesis of Tuam, Achonry and Elphin.
The parish church stands in the village of Aghamore, about six miles north of Ballyhaunis. The terrain is hilly the church is about 500 feet above sea level and from many of the hills very extensive views may be obtained. Eastward, the great central plain stretches away to the Shannon, and the hills of Roscommon and Longford may be seen clearly. Westward, the plain continues to the shores of Clew Bay, and it may well be that St. Patrick got his first view of “The Reek” from one of the hills in the centre of the parish. Northward, the view stretches away to the Ox Mountains and away beyond to Knocknaree and its Miscaun Maeve, while the outline of the romantic Ben Bulben may be seen on a clear day. To the south are the hills of Bekan, and Cnoc Meadhbh curves against the sky, and in the dim distance one gets glimpses of the Connemara Mountains. The Partry Mountains limit the view in on the south west, as also do the Nephin Mountains on the north west.