[talk-au] Locations of underground creeks

Elizabeth Dodd edodd at billiau.net
Tue Jan 4 06:03:27 GMT 2011


On Tue, 4 Jan 2011 16:51:54 +1100
Steve Bennett <stevagewp at gmail.com> wrote:

> Yer, but GPS's don't work underground.

you need an INS



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