URL：https://get.pxhere.com/photo/landscape-nature-sand-horizon-cloudy-hill-desert-dune-wind-dry-pattern-plain-surface-ripples-plateau-scene-habitat-shape-ecosystem-sahara-nobody-pristine-landform-erg-natural-environment-geographical-feature-aeolian-landform-877727.jpg
掲載元：https://pxhere.com/ja/photo/877727
