A cartographic representation of the United States as it existed circa 1840 provides a visual depiction of the nation’s territorial boundaries, states, and major geographical features during that specific period. This representation reflects the outcome of decades of westward expansion, territorial acquisitions, and internal development following the nation’s founding.
Its significance lies in illustrating the country’s composition on the cusp of significant events like the Mexican-American War and increasing sectional tensions over slavery. Examining these depictions reveals the distribution of states, the extent of settled versus unsettled territories, and the prevailing transportation networks. This is valuable for understanding demographic patterns, economic activities, and political alignments of the era. The visual data also highlights the incomplete state of geographic knowledge in some regions, particularly in the West.