Darran Valley is a community

Community (Wales)

A community is a division of land in Wales that forms the lowest-tier of local government in Wales. Welsh communities are analogous to civil parishes in England....

 in the County Borough of Caerphilly

Caerphilly (county borough)

Caerphilly is a county borough in southern Wales, straddling the ancient county boundary between Glamorgan and Monmouthshire.Its main town is Caerphilly, and also the largest...

, Wales

Wales

Wales is a country that is part of the United Kingdom and the island of Great Britain, bordered by England to its east and the Atlantic Ocean and Irish Sea to its west. It has a population of three million, and a total area of 20,779 km²...

. The Darran Valley consists of the valley of the Bargod Rhymni and contains the villages of Deri

Deri, Caerphilly

Deri is a village in Caerphilly County Borough, Wales. Deri along with Pentwyn and Fochriw make up the community of Darran Valley. The village grew around the Industrial Age to serve the collieries of Fochriw, Pencarreg and Groesfaen.-Sport:...

, Pentwyn and Fochriw

Fochriw

Fochriw is a village located in Caerphilly County Borough, Wales. It was well known for its neighbouring collieries, which employed nearly the entire local population in the early 20th century. It lies within the historic county boundaries of Glamorgan...

. These settlements grew around the Industrial Age to serve the collieries of Fochriw, Pencarreg and Groesfaen. As of 2001, the community had a recorded population of 2,545.

History

The Groesfaen Colliery, which at 2160 feet (658.4 m) was the deepest in the Darran Valley, opened around 1902. It was nationalised in 1947 and closed in 1968.