Region
America
4
United States
4
Arctic regions
3
Australia
2
Australien
2
Northeast Passage
2
États-Unis
2
AMERICA
1
Africa, Southern
1
Africa, southern
1
Amerika
1
Amérique
1
Arizona
1
Arizona (États-Unis)
1
Australia / Discovery and exploration
1
California
1
China
1
Colorado (cours d'eau, Amérique du Nord) - Etats-Unis
1
Colorado River (Colo.-Mexico)
1
Islands of the Pacific
1
Kalifornien
1
Malawi
1
Montana
1
Montana (États-Unis)
1
New South Wales
1
Norfolk Island
1
Ost
1
Pazifischer Ozean (Nord)
1
Portugal
1
Russia
1
Siberia (Russia)
1
Southwest, New
1
West (U.S.)
1
Yellowstone National Park
1
Zambezi River
1
Zambia
1
Zentralafrika
1
Zuni River (N.M.-Colo)
1