Alfreton
Collieries > A-B
Alfreton Colliery UNDER CONSTRUCTION
SK 4172 5633
Sunk in 1886 to Deep Soft seam and later deepened to Threequarters seam at 783 feet in 1919.
Deep Soft seam coal at 456 feet from the surface and 4 feet 4 inches thick.
Deep Hard seam.
