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| | NARA - Publications - Special List 29: Minnesota |
 | | Post Route Map of the State of Minnesota with Adjacent parts of Iowa, Nebraska, Dakota, Wisconsin, and of the British Possessions, showing post offices, with the intermediate distances between them and mail routes in operation on 1st December, 1883. |
 | | Post Route Map of the State of Minnesota with adjacent parts of Iowa, Nebraska, Dakota, Wisconsin, and of the British Possessions; Showing post offices with the intermediate distances and mail routes in operation on the lst of October, 1885. |
 | | Post Route Map of the State of Minnesota, showing the post offices with the intermediate distances on mail routes in operation on the 1st of March, 1901. |
| www.archives.gov /publications/finding-aids/maps/mn.html?template=print (1443 words) |
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