This giant sand dune in southern Spain is about 98 feet high and 656 feet wide, making it one of Europe's largest sand dunes. What is perhaps even more fascinating is what hides beneath it.

In the heart of Dasht-e Kavir, a large desert in Iran, there is an enormous area of sand dunes known as Rig-e Jenn. At about 1,400 square miles, it is said to be one of the most impossible areas ...

The Imperial Dunes are classified as an "erg," a large desert area covered by sand dunes with little to no vegetation. This particular dune field is California's largest, running around 40 miles ...

This story appears in the November 2012 issue of National Geographic magazine. I got my first lesson in the physics of sand dunes in 1998 on an expedition into the Sahara. In order to take aerial ...

It's a new sight: the longest conveyer belt in America.

Aa Aa Aa For large-scale coastal dune development there needs to be a suitable wind regime, large reserves of sand and suitable nearshore, beach and back beach morphology (Pye 1983, Iversen ...

For many people, the most visible impact of Cyclone Alfred was the damage big waves and storm surge did to their local ...

Mars, even to the casual observer, bears a striking resemblance to Death Valley in satellite imagery, featuring sand dunes, salt flats, and playas. Like Death Valley, the Martian surface is actively ...

In the end, large storms carried huge amounts of sand ... left and today the former town is covered by one of the best sand dunes in Wales which is home to a thriving mix of wildlife.

Impacts of humans on sand dunes and coastal environments in Wales Along the coast of south Wales, large scale developments such as the growth of towns and cities, expansion of transport networks ...