Four-year-old Gus Lamont disappeared from his homestead into the Australian outback. Two months on, questions remain

Authorities have undertaken one of the largest and most intensive searches for a missing person in South Australia

When a four-year-old child disappeared in the vast, brutal Australian outback, the response was swift and broad ranging.

It's now been two months since Gus Lamont, a blond, curly haired child described as both shy and adventurous, went missing from his family's homestead in a remote part of South Australia.