Important early map of the United States, being one of the earliest large format separately issued maps to include details of the Lewis & Clark Expedition up the Missouri River.
Rumsey states that the map is "probably influenced by Melish, nonetheless this is an outstanding map, with much of interest in the Missouri Territory." Shows the new Alabama Territory, an interesting configuration of Illinois around Lake Michigan, and strange east-west running mountain ranges leading to the Rockies.
Information from the explorations of Lewis and Clark is incorporated in the upper Missouri River area. The northern boundary with Canada is strange: it follows the 47.5 parallel and the Upper Missouri River, with a curious note about the lands of his "Catholic Majesty." One of the best examples we have seen on the market in the past 15 years, with unusually strong original color (see e.g. the Rumsey example for a more typical example: http://www.davidrumsey.com/luna/servlet/detail/RUMSEY~8~1~3691~330017:The-travellers-guide--A-new-and-cor .