This hand-colored map is from Samuel Augustus Mitchell's A New Universal Atlas Containing Maps of the various Empires, Kingdoms, States and Republics of the World. With a special map of each of the United States, Plans of Cities &c. The work was published in Philadelphia by the Author in 1846.
Samuel Augustus Mitchell (1792-1868) and his sons were leading map publishers in the United States in the 19th century. Mitchell moved to Philadelphia c1830 in the hopes to improve geography textbooks and American cartographical information. He acquired the rights to Tanner's New Universal Atlas (first published in 1836), and issued his first printing of the work in 1846.