Region
Earth
10
Earth (Planet)
7
Arizona
3
Asia
3
California
3
North America
3
Solar system
3
Arctic regions
2
Europe
2
Germany
2
Grand Canyon (Ariz.)
2
Himalaya Mountains
2
New Mexico
2
Africa, Northern
1
Atacama Desert
1
Atacama Desert (Chile)
1
Australia
1
Canada
1
Central America
1
Chile
1
China
1
Colorado
1
Crazy Mountains
1
Death Valley (Calif. and Nev.)
1
Denver Region
1
El Malpais National Monument
1
Gondwana (Continent)
1
Grand Canyon
1
Grand Canyon National Park
1
Hawaii
1
Iceland
1
Indian Ocean Region
1
Indonesia
1
Interstate 40
1
Italy
1
Krakatoa
1
Krakatoa (Indonesia)
1
Manix Lake
1
Manix Lake (Calif.)
1
McCartys
1
Meteor Crater (Ariz.)
1
Montana
1
Ness, Loch
1
Ness, Loch (Scotland)
1
New York
1
New York (State)
1
Northern Hemisphere
1
Oceania
1
Pacific Area
1
Petrified Forest National Park
1
more ...