Region
United States
Alaska
3
Japan
3
Arizona
2
Minnesota
2
Afghanistan
1
Camp Lejeune
1
Cochiti Dam (N.M.)
1
Colorado
1
Dillingham
1
Flint
1
Florida
1
Illinois
1
Iowa
1
Klamath Tribes
1
Maryland
1
Michigan
1
Mississippi River Valley
1
North Carolina
1
North Dakota
1
Oregon
1
Pennsylvania
1
Philippines
1
South Dakota
1
Tanana
1
Vietnam
1