Early western territorial boundaries are featured on this map of the United States. Washington and Oregon Territories extend to the huge Nebraska Territory at the continental divide. Nebraska Territory in turn, extends to the Missouri River where it borders a large Minnesota Territory. Utah Territory spans from California east to join Nebraska and Kanzas along the Rocky Mountains and continental divide. The very large New Mexico Territory comprises all of today's Arizona, the southern tip of Nevada, and part of Colorado. The map details the exploration routes of many expeditions including those of Marcy, Kearny, Fremont, etc., and locates the Santa Fe Trail and the Oregon Trail. Included with the map are 10 text sheets from the atlas that provide a wealth of demographic and historical information.

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Condition: B+

Lightly toned on centerfold with separations in the blank margins.