Fine map of California and the large western territories from this important series of maps originating with Samuel Augustus Mitchell. The map is filled with early county configurations, the exploration routes of Lewis and Clark, Fremont, Kearney, and Cooke, and the Spanish and Oregon Trails. Washington Territory's eastern boundary is the Rocky Mountains and its county development is mostly confined west of the Cascades. Oregon state has just formed, leaving its eastern half to Washington Territory, which is now shaped as an upside down "L" and touching Utah in the south. Utah Territory extends to Middle Park and Long's Peak in present-day Colorado with its eastern border with Nebraska and Kansas. The three vertical counties of Carson, Humboldt and St. Marys form the beginnings of what will become Nevada. Desilver's unique scroll border with his imprint at No. 251 Market Street, Philadelphia.

References: Wheat (TMW) #890.

Condition: A

Crisp impression and fine original hand coloring. A little marginal toning, map image very good to fine.