Region
Africa
1
America
1
Andalgala region
1
Antarctica
1
Arabian Peninsula
2
Argentina
2
Arizona
9
Atacama Desert (Chile)
1
Australia
1
Barry M. Goldwater Air Force Range (Ariz.)
1
Bisbee (Ariz.)
1
California
1
Central Australia
1
Chihuahuan Desert
3
Colorado Desert (Calif. and Mexico)
1
Danakil (Region)
3
Death Valley (Calif. and Nev.)
1
Earth (Planet)
3
Great Basin
1
India
1
Israel
1
Karoo
1
McMurdo Dry Valleys
1
Mexico
3
Mojave Desert
3
Namib Desert
3
Namib Desert (Namibia)
3
Namibia
3
Negev
1
Negev (Israel)
1
Nevada
3
North America
2
Rock Valley
1
Saguaro National Park
1
Sahara
3
Sahel
1
Sonora, Désert de
1
Sonoran Desert
11
South Africa
1
Southwest, New
4
Southwestern States
5
Tempe
1
Tucson region
1
United States
1
West (U.S.)
4