Region
California
3
California National Historic Trail
1
Clark County
1
Clark County (Nev.)
1
Colorado
1
Comstock Lode Mining District
1
Elko County (Nev.)
1
Great Basin
1
Hawaii
1
Lincoln County
1
Lincoln County (Nev.)
1
Nevada
40
Pony Express National Historic Trail
1
Tonopah (Nev.)
1
Utah
2
Washoe County
1
Washoe County (Nev.)
1
West (U.S.)
1
Wyoming
1