This fine map of the United States 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 Territory encompasses most of present-day Nevada, and New Mexico Territory includes present-day Arizona, parts of Colorado, and the southern tip of Nevada. 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. A large area in the southern portion of today's Nevada is Unexplored Region. Minnesota Territory stretches to the Missouri River, which it shares as a boundary with a huge Nebraska Territory that extends north to the Canadian border and west to the Continental Divide. Within the Nebraska Territory, a "Volcanic Region" is identified. The map is filled with details and place names, forts, Indian tribes, emigrant roads, early railways, battlefields, and a host of other interesting details. Several exploration routes are shown, including those of Fremont, Marcy, and Kearney. The purposed routes for the "Great Pacific Railroad" are traced. A second inset contains a plan of the District of Columbia. The map still bears the copyright date of 1850, but was published in circa 1857 with the new Gadsden Treaty Line 1854 delineated.

References: cf. Wheat (TMW) #685.

Condition: B

Contemporary color with some toning along the centerfold, light soiling, and dampstaining along the edges that enters into map image at left and right. Fold separations at top and bottom have been repaired with archival materials on verso.