Region
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Great Britain
1
Grey Towers National Historic Site (Milford, Pa.)
1
Highlands
1
Highlands (Scotland)
1
Idaho
1
Illinois
1
Louisiana
1
Marcellus Shale
1
Moab
1
Montana
1
New York
1
New York (N.Y.)
1
Niagara Falls State Park (N.Y.)
1
Riverside
1
Russia (Federation)
1
Scotland
1
South Dakota
1
Spain
1
Tioga County
1
Tioga County (Pa.)
1
United States, West
1
Utah
1
Virginia
1
Yellowstone National Park
1
Yosemite National Park (Calif.)
1
Zimbabwe
1
États-Unis
1