Region
Arizona
Mohave County
10
New Mexico
5
Coconino County
3
Maricopa County
3
Navajo County
3
Apache County
2
Grand Canyon
2
Grand Canyon (Ariz.)
2
Hualapai Indian Reservation
2
Pima County
2
Pinal County
2
Southwest, New
2
Cochise County
1
Colorado
1
Colorado River (Colo.-Mexico)
1
Gila River Indian Reservation
1
Grand Canyon National Park
1
Havasupai Reservation
1
Hopi Indian Reservation
1
Organ Pipe Cactus National Monument (Ariz.)
1
Palisades Creek Region
1
San Juan County
1
Tohono O'odham Reservation
1
Trans-Pecos (Tex. and N.M.)
1
Utah
1
Yavapai County
1
Zuni Indian Reservation (N.M.)
1