• The Cartographic Setting -- Louisiana: European Explorations and the Louisiana Purchase

    Evolving European and American Conceptions of Louisiana to 1803 Until 1803 the exploration and mapping of the territory acquired by the United States in the Louisiana Purchase was undertaken by the major colonial powers for a variety of reasons. Chief among them was the occupation of the lower Mississippi Valley, as well as the attempted possession of the Great Plains, the Missouri Basin, and ...

    • Date: 1650