Region
Southwest, New
28
Arizona
4
California
4
United States
4
Mexico
3
Beale Road
2
Mexican-American Border Region
2
Arizone
1
Boston
1
Colorado Plateau
1
Ghost Ranch (Abiquiu, N.M.)
1
Massachusetts
1
Mexico, North
1
New Mexico
1
North America
1
San Diego
1
Santa Fe National Historic Trail
1
Southwestern States
1
Tombstone
1