Babbage began his exploration of South Australia in 1856 when sent to search for gold up to the Flinders Ranges, when he discovered the MacDonnell River, Blanchewater and Mount Hopeful (renamed Mount Babbage after him in 1857 by George Goyder). Going beyond the frontier reached in 1851 by explorers John Oakden and Henry Hulkes, Babbage also disproved the notion that Lake Torrens was a single horseshoe-shaped lake or inland sea, ascertaining a number of gaps in the lake, which were later traversed other explorers such as Augustus Gregory and Peter Warburton. On 15 June 1858 near Pernatty Creek he discovered the remains of William Coulthard of Angas Park, Nuriootpa, who had died of thirst around 10 March 1858. On 22 October 1858 he discovered Emerald Springs.