Region
Florida
20
Colorado
19
Colorado River (Colo.-Mexico)
13
Colorado River Watershed (Colo.-Mexico)
12
California
11
Utah
7
Atlantic Ocean
6
Chesapeake Bay (Md. and Va.)
6
Grand Valley (Colo. and Utah)
6
Pacific Ocean
6
Great Salt Lake
5
Louisiana
5
Mexico, Gulf of
5
North Atlantic Ocean
5
Atlantic Coast (U.S.)
4
Florida Bay
4
Maine, Gulf of
3
Mesa County
3
San Francisco Bay
3
Anclote River Watershed
2
Arkansas River Valley
2
Bering Sea
2
Charlotte Harbor
2
Floridan Aquifer
2
Georgia
2
Grand Valley
2
Great Salt Lake (Utah)
2
Gulf Coast (U.S.)
2
Gunnison River
2
Hawaii
2
Illinois
2
Jacksonville
2
Miami-Dade County
2
Peace River
2
Saint Johns River
2
Suisun Bay
2
United States
2
Virginia
2
Alafia River (Fla.)
1
Alaska
1
Alaska, Gulf of
1
Anclote River Estuary
1
Apalachicola Bay
1
Apalachicola River Watershed
1
Arkansas River Watershed
1
Atchafalaya River Region
1
Atlanta
1
Barataria Bay
1
Biscayne National Park
1
Breton Sound (La.)
1
more ...