Region
Arizona
New Mexico
4
Black Mesa (Navajo County and Apache County, Ariz.)
1
Black Mesa Region (Navajo County and Apache County)
1
Cochise County
1
Colorado Plateau
1
Mogollon Rim Region
1
Monument Valley (Ariz. and Utah)
1
Monument Valley Region (Ariz. and Utah)
1
Navajo Indian Reservation
1
Southwestern States
1
Utah
1