This uncommon issue features an inset of the Gold Region of California and contains some of the largest western territorial boundaries. The large Kansas Territory borders Utah and New Mexico as there is no Colorado. Washington and Oregon both extend eastward to the Rocky Mountains and the Continental Divide. Utah and New Mexico are both shown at their largest configuration, with New Mexico occupying the entire Southwest. Minnesota Territory stretches to the Missouri River, which it shares as a boundary with a huge Nebraska Territory, extending north to the Canadian border and west to the Continental Divide in the Rocky Mountains. Fremont Basin in Utah Territory is bounded by great dividing ridges separating the waters of the Pacific Ocean and the waters of the Great Basin. The map is filled with details and place names, forts, Indian Tribes, emigrant roads and much more. Several exploration routes are shown, including those of Fremont, Marcy, and Kearney. Dated 1856, but published in the following year. A second inset contains a plan of the District of Columbia.

References: cf Phillips (A) #6135-5.

Condition: B

Lovely coloring and impression with original margins. A few spots, unevenly toned areas and lightly toned along centerfold, else very good.