Inside the Summit Tunnel(Walsden) Air Shaft Number 1

I took this picture in November 2013 with a Samsung Galaxy Tablet, I was out looking for the Summit Tunnel that runs underneath the Pennines Connecting West Yorkshire with Greater Manchester. The Summit Tunnel air shaft number 1 is the largest with a surrounding wall that is roughly shoulder high and a metal fence surrounding it, looking down you can see right in to the tunnel below. and it is a couple of 100ft from the tunnels eastern portal, www.colingreenphotography.co.uk