Geographic Subject
United States
22
Mississippi River Valley
21
Virginia
17
West (U.S.)
14
Mississippi River
9
Louisiana
8
North Carolina
7
Northwestern States
7
Roanoke Colony
6
Canada
5
New England
5
New France
5
New Mexico
5
New York (State)
5
Northwest, Canadian
5
Ohio River Valley
5
Pennsylvania
5
South Carolina
5
Southern States
5
Florida
4
Northwest, Old
4
Ohio
4
Massachusetts
3
Minnesota
3
Missouri River
3
North America
3
Ohio River
3
Oregon
3
Southwest, New
3
Southwest, Old
3
Bermuda Islands
2
Columbia River Valley
2
Gulf States
2
Maryland
2
Mexico
2
Mexico, Gulf of
2
Northwest, Pacific
2
Oklahoma
2
Philadelphia (Pa.)
2
Santa Fe National Historic Trail
2
Texas
2
West Indies
2
Albany (N.Y.)
1
Arctic Ocean
1
Arkansas
1
Arkansas River
1
Atlantic States
1
Azores
1
Boston
1
Boston (Mass.)
1
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