Geographic Subject
Russia (Federation)
18
Soviet Union
10
Chicago (Ill.)
6
Georgia (Republic)
4
Kazakhstan
3
Ukraine
3
Ural Mountains Region
3
Wyoming
3
Azerbaijan
2
Belarus
2
Bighorn Basin (Mont. and Wyo.)
2
Caucasus
2
Donets Basin (Ukraine and Russia)
2
Moscow (Oblast)
2
Paris (France)
2
Philadelphia (Pa.)
2
San Francisco (Calif.)
2
Abkhaz︠i︡a
1
Altai Mountains
1
Armenia
1
Asia, Central
1
Austria
1
Baikal, Lake
1
Baikal, Lake, Region (Russia)
1
California, Southern
1
Caribbean Area
1
Chicago
1
England
1
Estonia
1
Great Britain
1
Illinois
1
Kara-Tau (Mountains)
1
Lena River Watershed
1
Lena River Watershed (Russia)
1
London
1
Los Angeles (Calif.)
1
Morocco
1
Moscow-Volga Waterway
1
Nevada
1
New York
1
New York (N.Y.)
1
New York (State)
1
Norilʹsk
1
Norilʹsk Region (Russia)
1
Novyĭ Afon (Georgian S.S.R.)
1
Respublika Krym
1
Saint Louis (Mo.)
1
Sakha
1
Sakha (Russia)
1
San Diego (Calif.)
1
more ...