Region
United States
288
Texas
4
Afghanistan
3
Foreign countries
3
Iraq
3
Mexican-American Border Region
3
Washington (D.C.)
3
Alaska
1
Anacostia (Washington, D.C.)
1
Austin
1
Bosnia and Herzegovina
1
Canada
1
Chesapeake Bay (Md. and Va.)
1
Chesapeake Bay Region (Md. and Va.)
1
Chesapeake Bay Watershed
1
Colorado River Watershed (Colo.-Mexico)
1
Florida
1
Houston
1
Indiana
1
Liberia
1
Mexico
1
Mexico, Gulf of
1
New York (State)
1
North America
1
Oregon
1
Portland
1
Puerto Rico
1
Tennessee
1
United States Virgin Islands
1
West
1