Mount Toondina crater
Mount Toondina crater is an impact structure ( or astrobleme ) , the eroded remnant of a former impact crater , located in northern South Australia in the locality of Allandale Station about south of the town of Oodnadatta . 
<triplet> Mount Toondina crater <subj> impact crater <obj> instance of <subj> South Australia <obj> located in the administrative territorial entity <triplet> Oodnadatta <subj> South Australia <obj> located in the administrative territorial entity