 The modern-day estates that make up the area are found west of Darndale, north of the Greencastle Road, east of the Clonshaugh Industrial Estate and south of the R139; the part which lies north of the R139 has no or few residents.The Turnapin Stream, one of the two main tributaries which form the Mayne River, runs through the northern part of the area.The core of the district is the townland of the same name in the civil parish of Coolock.