Region
Arizona
Texas
13
New Mexico
6
California
3
Colorado
3
Idaho
2
Nevada
2
Oregon
2
Utah
2
Washington (State)
2
Wyoming
2
Alaska
1
Albuquerque
1
Cave Creek Canyon
1
Chihuahua Trail
1
Clark County
1
El Paso
1
Fremont County
1
Gilpin County
1
Kansas
1
Louisiana
1
Minnesota
1
Mississippi
1
Montana
1
Natrona County
1
Nogales
1
Norton Bay-Nulato region
1
Oklahoma
1
Old San Antonio Road (Tex.)
1
Pennsylvania
1
Pharr
1
Phoenix
1
Rocky Mountain National Park
1
San Diego
1
Seward Peninsula
1
United States
1
Waco
1