“Oregon, Washington, Idaho, Montana and British Columbia”

by G.W. Colton
from his “General Atlas”
published by G.W. & C.B. Colton, New York 1874

as with most Colton maps, this features major towns, roads, railways and topographical features.
nice decorative border and colors
beautiful double-page map of these Western States and small portion of Canada

measures approx 26″ x 17″