Region
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Oceania
2
Ohio
4
Oregon
6
Pennsylvania
4
Peru
2
Philippines
18
Potomac River
2
Sangre de Cristo Grant (Colo. and N.M.)
2
Sioux City (Iowa)
4
South Dakota
2
Southwestern States
1
Spain
4
Standing Rock Indian Reservation (N.D. and S.D.)
2
Tacoma (Wash.)
2
Texas
2
Turkey
2
United States
48,789
Utah
5
Washington (D.C.)
2
Washington (State)
2
Willamette River (Or.)
2
Wisconsin
4
Youngstown (Ohio)
2
Zanesville (Ohio)
2