The Northwest Territory, 1802
A map of the Northwest Territory of the United States north of the Ohio River, including areas of southern and eastern Ohio given up by Indians in the Treaty of Greenville in 1795. The region west of Ohio was organized in 1802 as the Territory of In...

Louisiana Purchase, 1803
A map of the Louisiana territory purchased from France in 1803, and the boundary established with the western Spanish territory by the purchase....

The United States After the Louisiana Purchase, 1803
A base map showing the extent of the United States after the purchase of the Louisiana territory from France in 1803....

The Louisiana Purchase, 1803
A map of the Louisiana territory purchased from France in 1803, and the boundary established with the western Spanish territory by the purchase. The map overlays the current State boundaries to show the extent of the territory....

The Expansion Resulting from the Louisiana Purchase, 1803
A base map showing the expansion of the United States resulting from the Louisiana Purchase in 1803....

Route of Lewis and Clark, 1803–1806
A map showing the route and winter camps of the Lewis and Clark explorations from St. Luis in the Louisiana Territory to Astoria on the Pacific in Oregon Country (1803–1806). The map shows natural boundaries of the British possessions and Louis...

Western Explorations, 1803–1807
A map of the western United States showing the early exploration routes of Lewis and Clark (1803–1806) and Zebulon Pike (1806–1807) from St. Louis to the western lands....

The Louisiana Purchase, 1803–1809
A map of the United States and the Louisiana Territory showing boundary disputes and boundary claims between 1763 and 1809. The map shows the natural boundaries and extent of the original Louisiana Territory claimed by the French, the portion ceded t...

West Florida, 1803–1819
A map of the disputed territory of West Florida showing the United States claim after the Louisiana Purchase (1803) and President Madison's annexation (1810) from the Mississippi River to the Pearl River, the occupation to the Perdido River in 1813, ...

Route of Aaron Burr, 1806–1807
A map of the route of the Aaron Burr Expedition (1806–1807), showing his route from Blennerhassett Island near Marietta to Fort Stoddart in the Mississippi Territory. The map shows the Bastrop land claims near Natchez, which were of interest to...