1862 Map of Washington and Oregon Territories by Johnson and Ward

14 x 18" lithographic map with original hand water color done as a secondary process by the publisher. Fine condition. rare configuration of the western territories of Washington and Oregon, with a division of Idaho coming very soon, but shown as part of Washington. A mid civil war atlas map from a prolific New York City publisher with fine details and content relating to westward expansion , Railroad and territorial division during this period.