Region
Saint Lawrence River Watershed
71
North America
46
Northeastern States
39
Canada
12
United States
12
Great Lakes (North America)
9
Saint Lawrence River
9
Ohio River Watershed
7
New York (State)
5
Middle West
4
Saint Lawrence River Valley
3
Saint Lawrence Seaway
3
Great Lakes
2
Michigan
2
Ohio
2
Ontario
2
Québec (Province)
2
Saint Lawrence, Gulf of
2
Wisconsin
2
Adirondack Mountains Region
1
Adirondack Mountains Region (N.Y.)
1
Arctic regions
1
Brockville (Ont.)
1
Canada, Eastern
1
Champlain, Lake
1
Colorado River Watershed (Colo.-Mexico)
1
Detroit (Mich.)
1
England
1
Erie, Lake
1
Great Britain
1
Great Lakes Region (North America)
1
Great Lakes Watershed
1
Great Lakes Watershed (North America)
1
Illinois
1
Mississippi River Watershed
1
Missouri River Watershed
1
New England
1
Northeast boundary of the United States
1
Ontario, Lake (N.Y. and Ont.)
1
Palestine
1
Saint Lawrence River Estuary
1
Vermont
1
West (U.S.)
1