Region
United States
7,156
Washington (D.C.)
71
Pennsylvania
49
California
30
Texas
30
Michigan
29
Ohio
26
Virginia
26
Illinois
25
North Carolina
25
Mississippi River
24
New York (State)
24
Wisconsin
24
Kansas
23
South Dakota
23
Indiana
22
Iowa
22
Kentucky
21
Massachusetts
20
Missouri
19
Minnesota
18
North Dakota
18
Florida
17
Nebraska
17
Washington (State)
17
Wyoming
16
Maine
15
New Mexico
15
New York (N.Y.)
15
Oregon
15
Georgia
14
Montana
14
Colorado
13
Alabama
12
Alaska
12
Mississippi
12
Maryland
11
Potomac River
10
San Francisco (Calif.)
10
West Virginia
10
Arizona
9
Indian Territory
9
Oklahoma
9
Tennessee
9
Chicago (Ill.)
8
Great Lakes (North America)
8
Louisiana
8
United Kingdom
8
Baltimore (Md.)
7
Dakota Territory
7
more ...