Fine example of the Western Sheet of Andriveau Goujon's map of the United States, found here as a a separate map to be bound into an atlas.
Andriveau's map of the west is a treasure trove of early and often erroneous western territorial names and boundaries. Territory of Colona appears, predating the appearance of Colorado. Similarly, an oddly misprojected Idaho appears, but is called Shoshone.
The map includes a massive Nebraska Territory, extending to the Canadian Border. Arizona is below New Mexico, in the so called "Bayor-Line" configuration.
Many early roads, forts and Indian Tribes noted in the west. An exceptional clean example of this highly desireable map and essential item for Colorado, Idaho and Western collections.