Region
United States
547
Africa
33
North America
33
California
25
Australia
18
Alaska
16
Northwest, Pacific
14
Montana
13
Oregon
13
Canada
10
China
10
Wyoming
10
Asia
9
Florida
9
South Africa
9
West (U.S.)
9
Africa, Sub-Saharan
8
Arizona
7
Great Britain
7
Hawaii
7
Africa, Southern
6
Idaho
6
India
6
Kenya
6
Yellowstone National Park
6
British Columbia
5
Colorado
5
Iowa
5
Washington (State)
5
Fossil Creek
4
Fossil Creek (Ariz.)
4
Indiana
4
Kings Canyon National Park (Calif.)
4
Mexico
4
Sequoia National Park (Calif.)
4
Southern States
4
Tennessee
4
Texas
4
California, Gulf of
3
East (U.S.)
3
Frank Church-River of No Return Wilderness (Idaho)
3
Giant Sequoia National Monument
3
Giant Sequoia National Monument (Calif.)
3
Israel
3
Kings Canyon National Park
3
Louisiana
3
Minnesota
3
Nebraska
3
New Zealand
3
North Carolina
3
more ...