Region
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New York
1
New York (State)
2
Ohio
2
Ontario
1
Oregon
2
Santa Monica Bay
1
Santa Monica Bay Region
1
Santa Monica Bay Region (Calif.)
1
Seadrift
1
Seadrift (Tex.)
1
South Carolina
2
Southwest, New
1
Southwestern States
1
Superior, Lake
1
Sơn Đoòng Cave (Vietnam)
1
Tehri Dam (India)
1
Texas
2
USA
1
United States
103
United States, West
1
Utah
2
Vietnam
1
Washington (State)
1
West (U.S.)
3
West Virginia
1
Whidbey Island
1
Winchester Region
1
Wisconsin
4
États-Unis
1