Sion Mills - Industry

Industry

The River Mourne was the reason that Herdman's Mill was built in Sion Mills, County Tyrone. It was founded in 1835 and is a large complex of now listed buildings, the most prominent of which was built in 1853 by William Henry Lynn of Lanyon, Lynn and Lanyon, Belfast. This is a very large and handsome five storey mill built in Italianate style of grey ashlar stone quarried locally, with yellow brick extensions added in 1884 to 1900. There had been a series of corn mills on the site, (the earliest recorded in 1640), with the latest one rebuilt in 1828 which the three Herdman brothers from Belfast, and their partners, the Mulhollands, purchased from the Marquis of Abercorn, and this became part of the 1835 tow mill next to the river, now the three storey "Old Mill". The immense water-power of the River Mourne provided 1000 water horsepower. The water-power and its history are still very much a feature of the Mill with the modern turbines, the newly developed river walks and picnic areas overlooking the huge weir and the 35 ft wide mill lade which flows on to run between the two main buildings of the Mill. There is also a complicated system of sluices and a suspension bridge ("the swinging bridge").