"Sacha" wrote in message
...
Okay, I extracted more info from Ray this morning. ;-) Apparently
the
slabs were real paving slab size - around 3' x 2.5' and they were
buried a
yard below the apple trees' roots.

Wow! That is a SERIOUS hole. Almost like digging to China. The old
bloke who dug the holes must have been fit.