aerial aeroplane airplane Alice-Springs angles appearance arial below celestial-impact central-Australia crater distance distant expanse flying formations from-above geologically-significant Gosse-Bluff height high impact-crater isolated landscape looking-down massive mountainous movement moving Northern-Territory outback panoramic-views remote rough rugged rural scenery scenic shadows sightseeing sparse sunlight sunshine terrain Tnorala travel travelling undulating vegetation barrier coloring colors colouring colours constructed dry-stone-hedge dry-stone-wall drystane-dyke fitted free-standing large light local-stone old patchwork perspectives random randomly-coursed rock-fence rocks secure security shaped shapes sharp solid stone stone-fence stone-walled stones stonework strength strong surface surfaces texture textures uneven variations variety wall walled arid aridity brine brine-lake bushland country-side dry-salt-crust extensive huge Lake-Amadeus panoramic Pantu plain saline saline-lakes salt-lake salt-lakes-chain saltpans