Region
Tennessee
89
United States
79
California
13
Alaska
9
Texas
9
Tropics
9
Australia
7
West (U.S.)
7
Missouri
6
Alabama
5
Colorado
5
Virginia
5
Arizona
4
Canada
4
Colombia
4
Georgia
4
Kansas
4
New Mexico
4
Utah
4
Washington (State)
4
Wyoming
4
England
3
Florida
3
India
3
Japan
3
Montana
3
New Hampshire
3
Antarctica
2
Bedford County
2
Cauca (Department)
2
China
2
Fairfax County
2
Idaho
2
Iowa
2
Jefferson County
2
Kentucky
2
Kesterson National Wildlife Refuge
2
Kesterson National Wildlife Refuge (Calif.)
2
Lawrence County
2
McMinn County
2
Mexico
2
Montgomery County
2
North America
2
Northwest, Canadian
2
Ohio
2
Panama
2
Popayán
2
Russia
2
San Juan River Watershed
2
San Juan River Watershed (Colo.-Utah)
2
more ...