Region
United States
9
Canada
3
Middle East
3
Northeastern States
3
Scotland
3
Vermont
3
Barro Colorado Island
2
Barro Colorado Island (Panama)
2
Garland Region
2
Garland Region (Neb.)
2
Hudson River Valley (N.Y. and N.J.)
2
Maine
2
Nebraska
2
New England
2
New York (State)
2
Panama
2
Penobscot Bay (Me.)
2
Tennessee
2
Tropics
2
Adirondack Mountains
1
Adirondack Mountains (N.Y.)
1
Adirondack Park (N.Y.)
1
Argentina
1
Barro Colorado, Île de
1
Barro Colorado, Île de (Panamá)
1
Buenos Aires
1
Buenos Aires (Argentina)
1
California
1
Californie
1
Chesapeake Bay Region
1
Chesapeake Bay Region (Md. and Va.)
1
Chesapeake, Région de la baie de (Mar. et Virg.)
1
China
1
Delta (Miss. : Region)
1
Delta (Region)
1
England
1
Europe
1
États-Unis (Nord-Est)
1
États-Unis (Sud)
1
Florida
1
Floride
1
Ithaca (N.Y.)
1
Japan
1
Japanese Alps
1
Kansas
1
Kent
1
Korea
1
May, Isle of
1
May, Isle of (Scotland)
1
Michigan
1
more ...