Silkstone No.1 Tunnel West Portal
Silkstone No.1, 289yds long. This is the well-fortified Western Portal, the Eastern Portal is buried following mining subsidence. Opened in August 1880 and closed in July 1981, coinciding with the closure of The Woodhead Route. Silkstone No.2 Tunnel lies to the Eastern end of No.1 Tunnel, the two tunnels are separated by 150yd cutting.