Sleeping Bear Dunes National Lakeshore is located in Northwestern Lower Michigan along the eastern shoreline of Lake Michigan. The closest city is Traverse City, 25 miles to the east. See link below.
The biggest sand dunes are in Algeria in the Sahara Desert. They are up to 430m (1,411 ft) high, nearly three times the height of the Greatest Pyramid of Cheops in Egypt or nearly or twice as high as...
It depends on the type of sand dune. There are three contenders for the title of the world's biggest sand dune, and it depends upon the context - whether one means the highest in actual sand dune...