How high is the largest sand dune in the world?

Answer 1

The largest sand dune in the world is in the Sechura Desert in Peru. It is 1176 m (3858 ft) -- an extraordinary height, especially when considering that the next tallest is less than half of that height (550 m).

However, even higher is the Duna Federico Kirbus, in the Fiambalá Basin of Argentina. Originally estimated at a height of 800 meters (2600 ft), it has been measured to 1230 meters (4000 ft) above its base at an elevation of about 5300 feet. Rather than the stereotypical peaked dunes, the sand is being blown up the steep western faces of the adjacent mountains.

There is a table on Wikipedia that sums up the world's tallest dunes.

(see the related link)

Answer 2

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 Canary Wharf.

Answer 3

The world's largest sand bar is the Florida peninsula. In ancient times what is now the Appalachacola river was larger by volume than the present day Mississippi river. The runoff from the erosion of the Appalacian mountains over the course of many millions of years formed the peninsula we now call Florida.

Answer 4

The Namib Desert in southwestern Africa claims that its Dune 7 is the tallest in the world at 1,256 feet high. However, Cerro Blanco of Peru is said to actually be the tallest dune in the world at 3,860 feet elevation.

Answer 5

It is in Colorado. It was a Millionaire question on 11/22/2011.

Answer 6

The highest sand dune is thought to be big Daddy,in the Namib desert,Sossusvlei,Nambia.It is 383m(1256ft) high from base and 570m(1870ft) from sea level.

Answer 7

We will probably never know as the wind is changing the heights at this moment! Some areas are so hot and dry, man has never visited, so we do not know :).

Answer 8

it is big. \boihh