where are the Highest Sand Dunes found?

Answer 1

The world's highest measured sand dunes are those in the Saharan sand sea of Isaouane-n-Tifernine in east-central Algeria. They have a wavelength of 5 km (3 miles) and attain a height of 465 m (1,526 ft). The Sahara is the largest desert in the world, but the whole region was fertile land until about 8,000 years ago

Answer 2

Highest Sand Dunes
The world's highest measured sand dunes are those in the Saharan sand sea of Isaouane-n-Tifernine in east-central Algeria. They have a wavelength of 5 km (3 miles) and attain a height of 465 m (1,526 ft). The Sahara is the largest desert in the world, but the whole region was fertile land until about 8,000 years ago.

http://www.guinnessworldrecords.com/content_pages/record.asp?recordid=47582

Answer 3

Perhaps not the highest, but the dunes within Sleeping Bear Dunes National Lakeshore along Lake Michigan in Michigan reach heights over 400 feet.

Answer 4

The Kalahari is highest sand dunes, located in africa with an average elevation of about 1,000 m (3,000 ft) above sea level. The sands of the Kalahari are red, brown, or white in places. Parallel lines of dunes

Answer 5

Northern california I think.
But there are some very high dunes in Africa but maybe not actually classified as dunes.

Answer 6

Mars