Covers western North America, from Lake Michigan and Lake Superior to the Pacific Ocean, including southern Canada and northern Mexico. Relief shown pictorially. "Facsimile of the original manuscript map in the William Robertson Coe Collection of Western Americana, Yale University Library."--Lower left corner of southwestern sheet. The original map was drawn in 1810. "Reproduced in Full-Tone Collotype by The Meriden Gravure Company"--Lower right corner of southeastern sheet.