Mount Bryan is a town in north-east South Australia. {*Mount Bryan is not in the north-east of South Australia. It is in what is known as the "mid …Mount Bryan is a town in north-east South Australia. {*Mount Bryan is not in the north-east of South Australia. It is in what is known as the "mid-north", and is only 150 kilometres north of the capital, Adelaide. The only town in the true "north-east is Innaminka.} The town is situated on the Barrier Highway 20 kilometres north of Burra, in the Regional Council of Goyder.