An early explorer of the new colony , he was influential in the settlement of the Barossa Valley .
Johannes Menge ( 4 January 1788 -- 1852 ) , has been regarded as South Australia 's first amateur geologist .
An early explorer of the new colony , Johannes Menge was influential in the settlement of the Barossa Valley .
Johannes Menge ( 4 January 1788 -- 1852 ) , has been regarded as South Australia 's first amateur geologist .