Abercarn Colliery, Newbridge, 1876
Explosion during shaft sinking. 3 died.
Bedwelty Colliery, Tredegar, 1866
Explosion. 26 died.
Bedwelty Colliery, Tredegar, 1880
Explosion. 6 died.
Burnyeat’s New Sinking, Ynysddu, 1904
Accident during shaft sinking. 7 died.
Cwmnantddu Colliery, Llanerch, 1869
Explosion. 6 died.
Cwmtillery (Tyr Nicholas) Colliery, Abertillery, 1857
Explosion. 12 died.
Cwmtillery Colliery, Abertillery, 1873
Explosion. 7 died.
Cwmtillery Colliery, Abertillery, 1876
Explosion, 18 died.
Glyn Colliery, Pontypool, 1890
Underground Fire. 5 died.
Henwain Colliery, Blaina, 1882
Explosion. 6 died.
Libanus Sinking Pit, Libanus, 1871
Shaft accident – the sides of the shaft collapsed. 5 died.
Llanerch Colliery, Pontypool, 1890
Explosion. 175 died.
Maclaren Colliery No.1 Pit, Abertysswg, 1902
Methane explosion. 16 died.
Marine Colliery, Cwm, 1927
Methane explosion. 51 died.
Markham Colliery, Markham, 1912
Methane explosion possibly caused by a match being struck. 5 died.
Milfraen Colliery, Trerthen, 1902
Shaft Accident. 5 died.
Milfraen Colliery, Blaenavon, 1929
Methane explosion. 8 died.
Nantyglo Colliery, Blaina, 1837
Explosion. 8 died.
Nantyglo Colliery, Nantyglo, 1847
Explosion. 8 died.
New Tredegar Colliery, Bedwelty, 1875
Explosion. 22 died & 3 injured.
Old Coal Pit, Blaina, 1837
Explosion. 21 died.
Prince of Wales Colliery, Abercarne, 1878
Explosion. 260 died.
Risca Colliery Black Vein Pit, Risca, 1846
Explosion. 35 died.
Risca Colliery, Risca, 1853
Explosion. 20 died.
Risca Colliery Black Vein Pit, Risca, 1860
Explosion. 141 died.
Risca Colliery Black Vein Pit, Risca, 1880
Explosion. 115 died.
Rosehayworth Colliery, 1876
Explosion. 15 died.
Six Bells Colliery, Newport, 1960
Methane explosion caused by a spark from a piece of quartz striking a steel girder. 45 died.
South Wales Colliery, Abertillery, 1876
Explosion. 20 died & 18 injured.
Tirpentwys Colliery, Tirpentwys, 1902
Shaft Accident. 8 died.
Tredegar Colliery New Bedwelty Pit, Bedwelty, 1865
Explosion. 27 died & 20 injured.
Victoria Colliery No 6 Pit, 1845
Shaft Accident, 11 died.
Victoria Colliery No 1 Pit, 1871
Explosion. 19 did & 1 injured.
