Yellowstone National Park, Big Horn Mountains and adjacent territory

1881

Heubach, Emil

1:750k

Montana east.

1874

Asher & Adams

1:1m

Montana.

1875

Asher & Adams

1:1m

Idaho

1927

National Map Company

1:2m

Idaho

1880

Bolitho, Edwin

Railway Distance Map of the State of Idaho

1934

Leahy, J.F.

Idaho.

1924

Rand McNally and Company

1:1m

Idaho.

1903

Rand McNally and Company

1:2m

Idaho.

1909

Cram, George Franklin

1:2m

Montana.

1897

Rand McNally and Company

1:2m