Graig Merthyr Colliery, line of drams in the Graigola Seam - note the unsupported sandstone roof, c.1977
Graig Merthyr Colliery, line of drams in the Graigola Seam - note the unsupported sandstone roof, c.1977
Disgrifiadau
Graig Merthyr Colliery, line of drams in the Graigola Seam - note the unsupported sandstone roof, c.1977
Ffynhonnell allanol:
Cysylltwch â Ni
I wneud cais i dynnu i lawr neu riportio cynnwys hiliol, sarhaus neu niweidiol mewn unrhyw ffordd arall.
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