Region
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Saint Helens, Mount (Wash.)
2
Sequoia National Park
2
Sequoia National Park (Calif.)
2
Shenandoah National Park
2
Society Islands
2
Sonoran Desert
2
South Australia
2
Spain
2
Tennessee
2
Venezuela
2
West Virginia
2
Yemen (Arab Republic)
2
Yukon
2
Abraham Lincoln Birthplace National Historical Park
1
Abraham Lincoln Birthplace National Historical Park (Ky.)
1
Alabama
1
Alberta
1
Alicante (Province)
1
Amazon River Watershed
1
Arctic regions
1
Asia
1
Australaisa
1
Australasia
1
Australia, Southeastern
1
Baja California (Mexico : Peninsula)
1
Baja California (Peninsula)
1
Bajío Region
1
Balearic Islands
1
Balkan Peninsula
1
Barro Colorado Island
1
Benton County
1
Big Cypress National Preserve
1
Blue Ridge Mountains Region
1
Bluestone National Scenic River (W. Va.)
1
Bold Park (W.A.)
1
Boundary Waters Canoe Area
1
Boundary Waters Canoe Area (Minn.)
1
Brazil, Northeast
1
British Columbia
1
California, Southern
1
Canada (Est)
1
Casa Grande Ruins National Monument
1
Casa Grande Ruins National Monument (Ariz.)
1
Cataract Canyon (Wayne County-San Juan County)
1
Chesapeake and Ohio Canal National Historical Park
1
Chihuahuan Desert
1
Chile
1
China, Northwest
1
China, Southwest
1
Clark County
1
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