This map, titled “Map of North America from 20 to 80 Degrees North Latitude Exhibiting The recent Discoveries, Geographical and Nautical,” was authored by James Wyld and published on June 1, 1823. The dimensions of this large case map are 166 cm in width and 146 cm in height. It is dissected into 24 sections and mounted on linen, designed to be folded into a slipcase, which was common for maps during this period.

The map provides a detailed representation of North America, highlighting recent geographical and nautical discoveries of the early 19th century. It draws from the authorities of noted explorers and cartographers like M. De Humboldt, Lieutenant Pike, Lewis and Clark, Sir Alexander MacKenzie, and others. The map is notable for its depiction of the boundary lines between the territories of Great Britain, Spain, and the United States, a significant geopolitical concern of the era.