Taff Merthyr was a deep navigation
colliery
Coal mining is the process of extracting coal from the ground or from a mine. Coal is valued for its energy content and since the 1880s has been widely used to generate electricity. Steel and cement industries use coal as a fuel for extra ...
in South Wales.
Taff Merthyr
/ref>
References
Collieries in South Wales
{{Wales-stub