He discovered the Montacute copper mine in the Mount Lofty Ranges , ten miles from Adelaide , but made no profit from it .
In 1840 Fortnum went to South Australia , where he acquired a cattle ranch .
Fortnum discovered the Montacute copper mine in the Mount Lofty Ranges , ten miles from Adelaide , but made no profit from it .
In 1840 Fortnum went to South Australia , where he acquired a cattle ranch .