AUGHNACLOY, a market-town and post-town, in the parish of CARRENTEEL, barony of DUNGANNON, county of TYRONE, and province of ULSTER, 16 miles (S.E.) from Omagh, and 75½ (N. N. W.) from Dublin; containing 1742 inhabitants. This place, which is on the confines of the county of Monaghan, is situated on the river Blackwater, and on the mail coach road from Dublin to Londonderry. The town was built by Acheson Moore, Esq., who also erected the parish church, and it is now the property of R. Montgomery Moore, Esq., his descendant: it consists of one principal street of considerable length, from which three smaller streets branch off, and contains 365 houses, of which the greater number are thatched buildings, although there are several good houses of brick roofed with slate, and in the immediate neighbourhood are several gentlemen's seats, which are described in the articles on their respective parishes. The market is on Wednesday, and is very well attended; and fairs for live stock are held on the first Wednesday in every month. There is a convenient market-house. A constabulary police station has been established here; and petty sessions are held every alternate Monday. The church, a spacious and handsome edifice, was erected in 1736. There are a R. C. chapel, and places of worship for Presbyterians in connection with the Synod of Ulster, and for Primitive and Wesleyan Methodists. The parochial school is supported by the archdeacon, and there are three other schools. At Garvey, one mile distant, is a very valuable mineral spring, which has been found efficacious in dyspeptic and cutaneous diseases; it is enclosed within a large building, and near it is a house affording excellent accommodation to those who frequent it for the benefit of their health. Dr. Thomas Campbell, author of Strictures on the History of Ireland, was a native of this place.