Desert |
Location |
Size |
Topography |
Sahara |
Morocco, Western Sahara, Algeria, Tunisia, Libya, Egypt, Mauritania, Mali, Niger, Chad, Ethiopia, Eritrea, Somalia |
3.5 million sq. mi. |
70% gravel plains, sand, and dunes. Contrary to popular belief, the desert is only 30% sand. The world’s largest nonpolar desert gets its name from |
Arabian |
Saudi Arabia, Kuwait, Qatar, United Arab Emirates, Oman, Yemen |
1 million sq. mi. |
the Arabic word Sahra’ , meaning desert Gravel plains, rocky highlands; one-fourth is the Rub al-Khali (“Empty Quarter”), the world’s largest expanse of unbroken sand |
Kalahari |
Botswana, South Africa, Namibia |
220,000 sq. mi. |
Sand sheets, longitudinal dunes |
Gibson |
Australia (southern portion of the
Western Desert) |
120,000 sq. mi. |
Sand hills, gravel, grass. These three regions of desert are collectively referred to as the Great Western Desert—otherwise known as “the Outback.” Contains Ayers Rock, or Uluru, one of the world’s largest monoliths |
Great Sandy |
Australia (northern portion of the Western Desert) |
150,000 sq. mi. |
Sand hills, gravel, grass. These three regions of desert are collectively referred to as the Great Western Desert—otherwise known as “the Outback.” Contains Ayers Rock, or Uluru, one of the world’s largest monoliths |
Great Victoria |
Australia (southernmost portion of the Western Desert) |
250,000 sq. mi. |
Sand hills, gravel, grass. These three regions of desert are collectively referred to as the Great Western Desert—otherwise known as “the Outback.” Contains Ayers Rock, or Uluru, one of the world’s largest monoliths |
Simpson and sturt stony |
Australia (eastern half of the continent) |
56,000 sq. mi. |
Simpson’s straight, parallel sand dunes are the longest in the world—up to 125 mi. Encompasses the Stewart Stony Desert, named for the Australian explorer |
Mojave |
U.S.: Arizona, Colorado, Nevada, Utah, California |
54,000 sq. mi. |
Mountain chains , dry alkaline lake beds, calcium carbonate dunes |
Sonoran sturt stony |
U.S.: Arizona, California; Mexico |
120,000 sq. mi. |
Basins and plains bordered by mountain ridges; home to the Saguaro cactus |
Chihuahuan |
Mexico; southwestern U.S. |
175,000 sq. mi. |
Shrub desert; largest in North America |
Thar |
India, Pakistan |
175,000 sq. mi. |
Rocky sand and sand dunes |