A handsome and colorful map of the Pacific Northwest with Washington in the uncommon configuration of an inverted 'L' that includes much of today's Montana and all of Idaho. In 1859, Oregon became a state and in the process Washington gained land from Oregon that is east of today's eastern border, resulting in this uncommon configuration. Washington Territory extends south to Utah and east to the huge Nebraska Territory. County development is mostly limited to along the coast. Very little information in the area of today's Idaho. Locates numerous forts including Boise, Benton, Owen, Colville, and Hall. Clearly shows the Oregon Trail, here unnamed, extending to Walla Walla. Names and locates the important landmarks - Three Buttes and the Three Tetons. A lovely steel engraved and hand colored map.

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Condition: A+

Lovely impression and original coloring with full margins. A little marginal toning, small spot in border.