has been mined from Koolan and Cockatoo Islands since 1951. A small copper mine also operated at Coppermine Creek on the mainland side of the sound, which in the period 1915-1916 produced ore containing 23.06 LT of copper, worth £A1,504, equivalent to in .

The Australian Defence Force has maintained a training facility at Yampi Sound since the 1970s.

References

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