What is it all about?
In November 1943 the Press
were invited to have a look around the Secret Underground City.
Click the button above to find out what they saw.
Click on the button below
to see around Tunnel Quarry.
Depot 1 Tunnel Quarry
gauge ammunition trains were hauled off the Great
Western Railway by diesel donkey through this entrance and
the underground depot. Today the doors are locked tight behind
a curtain of ivy and cranesbill.