Region
United States
299
Mexican-American Border Region
108
Mexico
23
Canada
15
Northern boundary of the United States
12
Central America
7
Southern boundary of the United States
5
Texas
4
Western Hemisphere
4
Arizona
3
China
3
European Union countries
3
Laredo
3
California
2
Canadian-American Border Region
2
Congo (Democratic Republic)
2
Guatemala
2
New Mexico
2
New York (State)
2
Organ Mountains Wilderness (N.M.)
2
Pakistan
2
Southwestern States
2
Aberdeen
1
Asia, Central
1
Brazil
1
Colombia
1
Del Rio
1
Ecuador
1
Europe
1
India
1
Maryland
1
Montana
1
North America
1
Oman
1
Rio Grande Valley (Colo.-Mexico and Tex.)
1
Rwanda
1
San Diego
1
Syria
1
Tohono O'odham Nation of Arizona
1
Tri-Border Area (Argentina, Brazil, and Paraguay)
1
Venezuela
1