Bradford on Avon
Lynn and I went to the London-end of the tunnel to see if we could see anything of the entrance to the ammunition sidings, but sadly there was nothing to be seen. A couple of WW2 pill boxes above the cutting and a police patrol came to see what we were doing, but drove off again after they had established that we just looked like a couple of old codgers, rather than trespassers !
It was raining, so my picture of the tunnel mouth was poor. Turning around on the overbridge, the view in the opposite direction was almost more interesting. It shows where the siding between the tunnel siding and Corsham station ran, underneath the aqueduct, which is currently having repairs done to it. And it looks suspiciously like an old signal box beneath the aqueduct.
Camborne and Carn Brea
Many thanks Roy