A map of the American colonies and territories west to the Mississippi River between the end of the French and Indian War of 1763 and the beginnings of westward expansion of the trans-Appalachian colony proposed in the Vandalia Project (1770), shortly before the American Revolutionary War. The map shows the proclamation line of the British colonies established in 1763 that defined the western boundary of the colonies along the watershed divide of the Appalachian Mountains, and the various delimitation lines of Native American lands established by treaties between 1763 and the Treaty of Lochaber between Britain and the Cherokee (1770).