This is a great early nineteenth century map based on Arrowsmith's seminal map and one of the first atlas maps to show the discoveries of Lewis and Clark. A note reads "Course of the Missouri according to Capt. Lewis" with its tributaries labeled R. Jefferson, Madison R. and Gallatin R. Pinkerton also includes a variety of information about the various Native American tribes and nations throughout the west.
References: Wheat [TMW] #311.
Beautifully engraved and colored. Centerfold reinforced with tissue. Some faint offsetting, overall very good.