The Northwest Territory, 1787
A map of the Northwest Territory of the United States north of the Ohio River and between the Mississippi River and Pennsylvania in 1787 at the time of the passing of "The Ordinance of Eighty–seve." which guaranteed several rights to ...

United States, 1789
A map of the United States in 1789, showing the State territorial claims, territories, and areas of territorial dispute. The map is color–coded to show States, territories, British possessions, and Spanish possessions, and shows the Northwest T...

The Development of the Northwest Territory in the United States, 1790–1810
A map of the American Northwest Territory showing the boundary developments in 1790, 1800, and 1810. The upper left map shows the territory acquired by the United States from Britain after the Revolutionary War as established by the Treaty of Paris (...

The Perdido River, 1790–1842
A map of the Perdido River area, including Mobile Bay, Pensacola, and the Mississippi Delta. The Perdido River was the disputed boundary of West Florida between the United States and Spain, resolved in 1819 when Spain ceded Florida under the Adams&nd...

Development of American Interests in the Pacific, 1791–1903
A map of the United States and Pacific Ocean showing the development of American interests in the Pacific from the early exploration of Oregon Country in 1791 to the formal annexation of the Midway Islands and the Panama Strip in 1903. The map shows ...

Oregon Controversy, 1792–1846
A map of the Oregon Territory between the time of exploration by George Vancouver (1792) and the Oregon Treaty of 1846. The map is color–coded to show the disputed claims of the British and United States, the Russian American line of 1825, the ...

The United States Before the Louisiana Purchase, 1800
A base map showing the extent of the United States prior to the purchase of the Louisiana from France in 1803....

The United States, 1800
A map of the United States in 1800 showing the original thirteen states with the additions of Vermont (1791), Kentucky (1792), and Tennessee (1796), the State claims to western lands by South Carolina and Georgia, the extent of the Northwest Territor...

Southern States along the Gulf of Mexico, 1800–1820
The area around the Gulf of Mexico circa 1800....

United States, 1801
A map of the United States in 1801. The map is color–coded to show the States and territory of the United States west to the Mississippi River, the British territories of Upper and Lower Canada, Rupert's Land, and the Bahamas, the French posses...