Region
United States
10
Wisconsin
4
Cuyahoga Valley National Park (Ohio)
2
Ohio
2
West (U.S.)
2
Alberta
1
Alberta, Northern
1
Arctic regions
1
Athabasca Tar Sands (Alta.)
1
Australia
1
California
1
Canada
1
Clearwater County (Idaho)
1
English River Indian Reserve No. 21 (Ont.)
1
Ganges River (India and Bangladesh)
1
Himalaya Mountains
1
Idaho
1
India
1
Kenora Region
1
Kenora Region (Ont.)
1
Louisiana
1
Mesabi Range
1
Minnesota
1
Mississippi River Delta (La.)
1
Moab
1
Ontario
1
Santa Monica Bay
1
Santa Monica Bay Region
1
Santa Monica Bay Region (Calif.)
1
Superior, Lake
1
United States, West
1
Utah
1