This was about as good of a picture within the tunnel as I could manage.  There was very low...

This was about as good of a picture within the tunnel as I could manage. There was very low light and lots of dust in the air. This is one of the emergency areas near the south end, on the east (northbound) side, I believe.

Location
SwitzerlandGotthard Base Tunnel
Photographer
Catherine Hovell
Date taken