[AMERICANA - MAP]. COLTON, G.W. and C.B. Map of the Country from Lake Superior to the Pacific Ocean from the Latest Explorations and Surveys. New York, 1868.

Lithograph map with original hand-coloring, folded as issued, 584 x 1144 mm. (Several repairs to folds verso, some splits.)

A detailed promotional map illustrating the route of the Northern Pacific Railroad from Lake Superior to the Pacific Ocean was first issued in 1867 to accompany the report of Edwin Johnson on the progress of the railroad.