Region
United States
32
Oregon
29
Colorado
15
Wyoming
15
Alaska
12
Arizona
11
Tongass National Forest
10
Tongass National Forest (Alaska)
9
Minnesota
8
Oregon, Western
8
Pennsylvania
8
Kansas
7
New Mexico
7
Utah
7
Mississippi River Watershed
6
Montana
6
Washington (State)
6
Mitkof Island (Alaska)
5
North Carolina
5
Wisconsin
5
Asia
4
California
4
Connecticut
4
Douglas County
4
Idaho
4
Indiana
4
Iowa
4
Mitkof Island
4
Nevada
4
Texas
4
Africa South of the Sahara
3
Australia
3
Doña Ana County
3
Florida
3
Illinois River Watershed
3
Lafayette Parish
3
Long Island
3
Louisiana
3
Mecklenburg County
3
Nassau County
3
New York (State)
3
Oklahoma
3
Suffolk County
3
Virginia
3
Agua Fria National Monument (Ariz.)
2
Brazos River
2
Brazos River Watershed
2
Charlotte
2
Cheney Reservoir Watershed
2
China
2
more ...