Hydrographical Basin of the Upper Mississippi River from Astrono ~Catalog 56~ but this map updates the

but this map updates the country to the latest border changes

che comprende l'estreme terre

Image size is approximately 22 X 15

Also shows mail steamer lines

Cottub Minar

Hydrographical Basin of the Upper Mississippi River from Astrono ~Catalog 56~ but this map updates theHydrographical Basin of the Upper Mississippi River from Astronomical and Barometrical Observations, Surveys and Information, by J. N. Nicollet in the years 1836, 37, 38 and 40 assisted by Lt. J. C. Fremont, of the Corps of Engineers under the direction of Col. J. J. Abert 1843 This is the first great map of the upper Mississippi basin. Nicollet came from France to conduct the survey according to the latest European methods and young Fremont was