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Description
Interesting retrograde map of North America, illustrating the cartographic features of the continent roughly 30 years prior to the 1830 date.
Includes the mythical River of the West and details in the Pacific Northwest which are more consistent with the period immediately after Vancouver's voyages.
Port de Ft. Drake is shown, but the discovery of San Francisco Bay, which was first mapped in England by Dalrymple in the 1790s, is not yet shown.