Input (grade 12): In 1818, Hume went on a journey with James Meehan, the deputy surveyor-general, and Charles Throsby during which Lake Bathurst and the Goulburn Plains were discovered.
Output (grade 11): In March 1817 he went on a journey with James Meehan, the deputy surveyor-general, and discovered Lake Bathurst and the Goulburn Plains.