Darran Valley Welsh: Cwm Darran
Parc Cwm Darran
Darran Valley Location within Caerphilly
Population	2,545 (2001)
OS grid reference	SO112032
Community	Darran Valley
Principal area	Caerphilly
Preserved county	Gwent
Country	Wales
Sovereign state	United Kingdom
Post town	BARGOED
Postcode district	CF81
Dialling code	01443
Police	Gwent
Fire	South Wales
Ambulance	Welsh
UK Parliament	Caerphilly
Senedd Cymru – Welsh Parliament	Caerphilly
List of places UK Wales Caerphilly 51°43′13″N 3°17′13″W / 51.7204°N 3.2869°W / 51.7204; -3.2869

Darran Valley (Welsh: Cwm Darran) is a community in the County Borough of Caerphilly, Wales. The Darran Valley consists of the valley of the Bargod Rhymni and contains the villages of Deri, Pentwyn and Fochriw. 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.,^[1] increasing to 2,607 in 2011.^[2]

History

The Groesfaen Colliery, which at 2,160 feet (660 m) was the deepest in the Darran Valley, opened around 1902.^[3] It was nationalised in 1947 and closed in 1968.^[4]