At Mesquite Dunes in Death Valley, I setup on the tallest dune within the eastern side. I shot at 300mm, (FF equiv), across the dunes to the west to capture what looked like pyramid castles. I also focus stacked the foreground dune for better overall image focus. If you look really close, you can see a couple people at the base of the tall middle dune.
Fuji X-T2
Fuji 55-200mm @ 200mm