Out Of The Blue Artifacts A Library of a lifetime of collecting
Rosemont Coal Level – Clyn Mawr.
The map shows the extent of the Rosemont Coal Level under the lower part of Mynydd James. Also the drift drivage from Cwmtillery Colliery to Rose Heyworth Colliery.
Rosemont Coal Level – Clyn Mawr.
The map shows the extent of the Rosemont Coal Level under the lower part of Mynydd James. Also the drift drivage from Cwmtillery Colliery to Rose Heyworth Colliery.