More trackers have been brought in as the desperate search continues for a four-year-old boy missing in the South Australian outback.
August 'Gus' Lamont vanished on Saturday from his grandparents' remote homestead, about 40 kilometres south of Yunta.
Hundreds of searchers have scoured the red dust and scrub, but the only trace of Gus is a single footprint discovered about 500 metres from the homestead - which police have since cast doubt on.
The large-scale search will enter its seventh day on Friday, after police admitted it is now a recovery mission rather than a rescue.
This comes as the first photo of the little boy was released by the family on Thursday.
