Antique North Dakota and South Dakota Map

Antique map of North Dakota with South Dakota on the back.
It is 11 1/2" x 14 1/2".
There is writing in pencil along the edge that states the map is 1893 earlier than 1900. The edges are darkened.
This map has excellent bright coloring and detail and lists the counties and chief cities by population of the time.
Overall good condition.