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Rose Heyworth (later Abertillery New Mine)
The South Wales Colliery Co. sank Rose Heyworth (originally called "Rose y Gwartha") in 1872.
It was renamed after the wife of Lawrence Heyworth the first Managing Director of the South Wales Company.
For many years it was connected to the South Griffin Colliery for pumping and ventilation, the former being a downcast shaft and the latter an up-cast, it was also connected to Cwmtillery.
Lancaster's Steam Coal Company took it over in 1888.
From the Inspector of Mines list 1896, South Wales and Rose Heyworth, there were 1625 men producing coal from the Old coal, Three Quarters, Big, and Elled seams.
By 1918 the workforce at Rose Heyworth and Cwmtillery collieries had risen to 2,760.
From a report 1923, there were 1,081 men employed at Rose Heyworth, working the Black Vein, Big Vein, Old Coal and Meadow Vein seams.
In 1938 there were 804 employed at Rose Heyworth and 754 in 1945.
During 1959 it was integrated with Cwmtillery after a new drift mine (Abertillery New Mine) was driven 1,200 yards at a 1 in 5 gradient to raise the coal from the two pits. Coal from Blaenserchan was also brought to the surface using the same drift.
It closed in 9th of October 1985.