1820 U.S. Territorial Map: Missouri Compromise and Louisiana Purchase Boundaries #2241994 (License: Personal Use)

The map depicts the United States shortly after the Missouri Compromise of 1820, with clear demarcations of free states (north of 36°30′), slave territories (south), and unorganized lands like the Missouri Territory. It includes joint U.S.-British claims in Oregon Country and Spanish-held regions west of the Mississippi, reflecting geopolitical tensions of the era. Hatched patterns distinguish territories, states, and disputed zones, with key rivers and latitude lines guiding geographic context.

Used in educational history pages, museum exhibits, or digital archives discussing westward expansion, slavery’s geographic spread, and early U.S. federal compromises; targets students, researchers, and history enthusiasts seeking visual context for pre-Civil War political geography.