Extensive and detailed map of the area east of the Deschutes River and extending to the Snake River, and from the desert southeast of Lake Harney to the Columbia River. The map represents a decisive campaign against the Shoshones, who were defeated during the campaign. Details many exploration routes, emigrant and Indian trails, camps, battlegrounds, and forts including Boise, Walla Walla, Dalles, Cascade, and Vancouver. Portland appears as a rather small community. Clearly shows the Oregon Trail (labeled the Immigrant Road) with springs along the way. Several large regions are marked as Unexplored. Lithographed map (by J. Bien & Co.) on a scale of about 12 miles to the inch.

References: Wheat (TMW) #1016

Condition: B

Issued folding, now backed with archival tissue. Some light toning along folds, else very good.