Idaho.

1875

Cram Atlas Company

1:1m

Map illustrating the route of General W. T. Sherman from Helena, Montana, to Spokane Falls, Washington Territory, between August 29th and September 18th 1877.

1877

Sherman, William T. (William Tecumseh), 1820-1891

1:575k

Post Route Map of the State of Idaho Showing Post Offices ... July 1, 1938.

1938

United States. Post Office Department

1:766k

Idaho

1909

Rand McNally and Company

1:2m

Idaho, Montana west.

1874

Asher & Adams

1:1m

Idaho.

1897

Rand McNally and Company

1:2m

Idaho.

1889

Rand McNally and Company

1:2m

Idaho.

1924

Rand McNally and Company

Idaho, Montana Western Portion.

1875

Asher & Adams

1:1m

Idaho.

1909

Cram, George Franklin

1:2m