Map Of The Oregon Territory By The U.S. Ex. Ex. Charles Wilkes Esqr. Commander. 1841. Note. The Northern part of this Map contains the latest information of the Hudson Bay Company, and the Eastern part, that of Lieut. Fremont's U.S.T.E. Exploration on the Eastern side of the Rocky Mountains. (inset map) Columbia River Reduced From A Survey Made By The U.S. Ex. Ex. 1841.
