"An Accurate Map of North America from the latest Improvements and Regulated by Astronomical Observations", Anon.
Subject: North America
Period: 1764 (circa)
Color: Black & White
11.5 x 7.3 inches
29.2 x 18.5 cm
This colonial map is boldly engraved and extends to include all of the Caribbean Islands. The colonies of North and South Carolina, and Georgia extend to the Mississippi River, the Southwest is comprised of New Navarre and New Mexico. The Northwest is labeled New Albion, above which is the "Inlet discover'd by Mrin d Aguilar," suggesting the possibility of a Northwest Passage through some rivers in Canada that flow toward the inlet. Quivira is in the area of Montana or Wyoming with the label R. Missouru nearby, but no river is indicated. Frontier forts, rivers and some topography are identified. Western Canada is completely blank, has no coastline and is labeled Parts Unknown. The geography of this map is probably taken from Bowen's map with a similar title.
Fine example less on spot in the far right margin.