Region
United States
60
North America
18
Northwest, Pacific
11
California
9
Canada
7
Africa
6
Alaska
5
États-Unis
4
Klamath River Watershed (Or. and Calif.)
4
Massachusetts
4
West (U.S.)
4
Arctic Coast (Alaska)
3
Atlantic Ocean
3
Bering Sea
3
British Columbia
3
Caribbean Area
3
China
3
Columbia River Watershed
3
Europe
3
Great Britain
3
Hawaii
3
Kuskokwim River Watershed (Alaska)
3
Mexico
3
New England
3
Tropics
3
West United States
3
Yukon River Watershed (Yukon and Alaska)
3
Yukon-Kuskokwim Delta (Alaska)
3
America
2
Asia
2
Cayman Islands
2
Chile
2
Colombia
2
Colombie-Britannique
2
Delta Region
2
Developing countries
2
Galapagos Islands
2
Honduras
2
Indonesia
2
Italy
2
Maine
2
Nisqually Indian Tribe
2
Nisqually Indian Tribe of the Nisqually Reservation, Washington
2
Nisqually River Watershed
2
Northeastern States
2
Norway
2
Pacific Area
2
Pacific Ocean
2
Red Hills (Fla. and Ga.)
2
Snake River (Wyo.-Wash.)
2
more ...