Post route map of the states of Montana, Idaho and Wyoming with adjacent parts of N. & S. Dakota, Nebraska, Colorado, Utah, Nevada, Oregon, and Washington showing post offices with intermediate distances and mail routes in operation on the 1st of October 1891. Also shows counties, railroads, postal routes, and frequency of mail service. Prime meridians: Washington and Greenwich. "The service on this diagram brought up to date of Oct. 1st. 1891."... , Idaho Montana Wyoming

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Size: 11380px × 9067px
Photo credit: © LM/BT / Alamy / Afripics
License: Licensed
Model Released: No

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