Stock Photo: Yellow-footed rock-wallaby, Petrogale xanthopus, in the Flinders Ranges National Park in the outback of South Australia The Yellow-footed rock-wallaby, is a colorful and very pretty little rock wallaby living in steep rocky outcrops and the rock faces of. Yellow-footed rock-wallaby, Petrogale xanthopus, in the Flinders Ranges National Park in the outback of South Australia The Yellow-footed rock-wallaby, is a colorful and very pretty little rock wallaby living in steep rocky outcrops and the roc