| Location | |
|---|---|
| Country | Wales |
| Production | |
| Products | Steam coal |
| History | |
| Opened | 1881 |
| Active | 1881–1990 |
| Closed | 1990 |
| Owner | |
| Company | 1874–1880: Mordecai Jones / J. R. Cobb 1880–1932: Locket's Merthyr Company 1932–1935: Welsh Associated Collieries 1935–1947: Powell Duffryn 1947–1990: National Coal Board |
Maerdy Colliery was a coal mine located in the South Wales village of Maerdy (Welsh: Y Maerdy), in the Rhondda Valley, located in the county borough of Rhondda Cynon Taf, and within the historic county boundaries of Glamorgan, Wales. Opened in 1875, it closed in December 1990.