The United States at the start of the 19th century. Good detail of river systems and settlements. The Great Lakes are becoming increasingly accurate, though the southern portion of Lake Huron remains distorted. Published in 1806, the political divisions shown on the map correspond to a period 4-8 years earlier. Georgia extends to the Mississippi, despite the fact it had ceded its claims to western lands in 1802. The Northwest Territory is shown at its full extent, with locations shown for many Indian Villages as well as several forts. The area of white settlement within the Northwest Territory is delineated by the 1795 Treaty Line (Treaty of Greenville). In New England, the northern boundary of Maine is pushed south, reflecting British claims in this area.