The Library of Congress item describes this map collection as free to use and reuse unless a contrary Rights Advisory applies; none was identified in the selected item record. Wikimedia Commons identifies this reproduction as public domain (PD-old-100-expired / Public Domain Mark). The included 3840-pixel JPEG is an exact server-delivered reduced-size reproduction; small lettering may require the linked full-resolution source.

Credit: United States Post Office Department and W. L. Nicholson, Post route map of the territory of Dakota, 1881 edition, dated 1879 with service information updated to 1881. Library of Congress, Geography and Map Division, item 2012593214, digital ID g4171p.ct003096. Reduced-size reproduction delivered by Wikimedia Commons.

Source record: https://www.loc.gov/item/2012593214/
Rights reference: https://commons.wikimedia.org/wiki/File:Post_route_map_of_the_territory_of_Dakota_with_adjacent_parts_of_Montana,_Wyoming,_Nebraska,_Iowa_and_Minnesota,_and_portions_of_the_Dominion_of_Canada_LOC_2012593214.jpg

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