Treharris is a town and also neighborhood (and also electoral ward) in the Taff Bargoed Valley in the south of Merthyr Tydfil County Borough, South Wales. It is located about 0.6 miles (1.0 km) west of Trelewis, where it is divided by the Taff Bargoed river, and also 0.9 miles (1.4 km) from Nelson in Caerphilly county borough and has a population of 6,252, increasing to 6,356 at the 2011 Census. As a community, Treharris includes the towns of Quakers Yard and also Edwardsville. Because of pitch and narrowness of both the Taff and also Taff Bargoed valleys at Treharris several noteworthy bridges as well as viaducts have been built in the location. During the early 21st century, like lots of ex-mining villages in the area, Treharris went through significant regeneration to the town/village centre. Most, if not every one of the land where Deep Navigating was positioned has actually been designed and also is now part of the brand-new Parc Taff Bargoed, where a number of the local football as well as rugby teams train and play.