Map of the Territory of the United States from the Mississippi to the Pacific Ocean Virginia Campobello Island

Campobello Island

magnetic variations

Straits of Karquines

Heavy paper

and Tidal information along with currents are also given

Map of the Territory of the United States from the Mississippi to the Pacific Ocean Virginia Campobello IslandThis is a monumentally important and scarce map that is considered to be the first accurate overall picture of the US West. It is known as Warren's General Map and he was just 24 years old when commissioned to conduct the survey. This very large map on two joined pages is drawn on the polyconic projection, incorporates the result of a half century of government explorations beginning with Lewis & Clark to that of Warren's. Much detail is provided as