Sand dunes aren't stationary because its just a big mound of sand, and wind can blow away sand.
Badain Jaran is a desert in China. It has the tallest stationary dunes on earth, some of which rise to 500 metres.
Seif dunes and star dunes in Algeria
A barchan dune has a crescent shape with horns pointing downwind and forms in areas with limited sand, while a parabolic dune has a U-shape with the horns pointing upwind and forms in areas with abundant sand. Additionally, barchan dunes are individual and migrate due to wind direction, while parabolic dunes are stationary and often found in coastal regions.
There are only two sand dunes in Michigan. The two sand dunes are Sleeping Bear Dunes and Sliver lake sand dunes.
Fore dunes and back dunes but mostly fore dunes.
Huge piles of sand are called sand dunes. Sand dunes typically form in deserts or coastal areas where there are strong winds that shape and move the sand into these large structures.
Silver Lake Sand Dunes and Sleeping Bear Dunes
the largest sand dunes
sand dunes change
Moving dunes is what is in my book...
Florida has so many dunes on every single beach! :0)