Treharris is a small town and community (and 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 kilometres) west of Trelewis, from which it is separated by the Taff Bargoed river, and 0.9 miles (1.4 km) from Nelson in Caerphilly region borough and has a population of 6,252, boosting to 6,356 at the 2011 Census. As a neighborhood, Treharris includes the towns of Quakers Yard as well as Edwardsville. Because of pitch and also narrowness of both the Taff as well as Taff Bargoed valleys at Treharris a number of noteworthy bridges as well as viaducts have been constructed in the area. During the very early 21st century, like lots of ex-mining towns in the location, Treharris went through substantial regrowth to the town/village centre. The majority of, otherwise every one of the land where Deep Navigation was located has actually been landscaped and also is currently part of the brand-new Parc Taff Bargoed, where much of the regional football as well as rugby groups train and also play.