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Trip to Australia, 2004
To go to the list of pictures: click
Here
The tunnels down were about 2m high
and 2m wide. At dangerous places
the tunnels were propped with
upright logs of local Black
cypress pines. The temperature down
there was pleasant and it was
moist. The operation underground is
supported by a 25 kW generator,
standing by the side of the shaft.
The digging is done with the
'digger', an electric/hydraulic
machine with a digging claw. The
dirt is scooped and transported by
the 'bogger', a small vehicle,
electrical/hydraulically operated
as well. George starts to dig and
transport the heap of opal bearing
ground to the hoist.
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