Treharris is a village and also community (and electoral ward) in the Taff Bargoed Valley in the south of Merthyr Tydfil County Borough, South Wales. It is located regarding 0.6 miles (1.0 km) west of Trelewis, from which it is separated by the Taff Bargoed river, as well as 0.9 miles (1.4 km) from Nelson in Caerphilly area borough as well as has a population of 6,252, increasing to 6,356 at the 2011 Census. As a community, Treharris includes the towns of Quakers Yard as well as Edwardsville. As a result of pitch as well as narrowness of both the Taff and Taff Bargoed valleys at Treharris numerous significant bridges and viaducts have actually been built in the location. During the early 21st century, like numerous ex-mining towns in the location, Treharris went through substantial regeneration to the town/village centre. The majority of, if not all of the land where Deep Navigation was located has actually been landscaped and is now part of the brand-new Parc Taff Bargoed, where many of the regional football as well as rugby teams train and play.