Region
Arizona
1
Bisbee
1
California
2
Canada
9
Canadian-American Border Region
4
Central America
16
China
2
Europe
1
Mexican-American Border Region
57
Mexico
29
Montana
1
New Mexico
2
New York (State)
2
North America
6
Northern boundary of the United States
3
Organ Mountains Wilderness (N.M.)
1
Rio Grande Valley (Colo.-Mexico and Tex.)
1
Southern boundary of the United States
3
Texas
1
United States
443
Western Hemisphere
3