On 30 June 2014 12:22, John Gardner <goflo3@gmail.com> wrote:

> Also worth noting that, lots of places, keeping an underground
>
> structure dry can take some doing - And energy.
>
> I'd guess that's not a big problem in Coober Pedy.
>

You may have to pump it out the day after the annual rainfall arrives.

Views from a small distance Coober Pedy opal fields look like a lunar
landscape.
(Viewed up close a lunar landscape probably looks like Coober Pedy)


              Russell
--=20
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