The following outline traces the territorial evolution of the U.S. State of Wyoming.

Outline Historical territorial claims of Spain in the present State of Wyoming: Nueva Vizcaya, 1562–1821 Santa Fé de Nuevo Méjico, 1598–1821 Gran Cuenca, 1776–1821 Treaty of Córdoba of 1821 Historical territorial claims of France in the present State of Wyoming: Louisiane, 1682–1764 Treaty of Fontainebleau of 1762 Historical territorial claims of Spain in the present State of Wyoming: Luisiana, 1764–1803 Third Treaty of San Ildefonso of 1800 Historical territorial claims of France in the present State of Wyoming: Louisiane, 1803 Vente de la Louisiane of 1803 Historical international territory in the present State of Wyoming: Oregon Country, 1818–1846 Provisional Government of Oregon (extralegal), 1843–1849 Oregon Treaty of 1846 Historical territorial claims of Mexico in the present State of Wyoming: Santa Fé de Nuevo México, 1821–1848 Gran Cuenca, 1821–1848 Treaty of Guadalupe Hidalgo of 1848 Historical territorial claims of the Republic of Texas in the present State of Wyoming: Disputed strip north from the headwaters of the Arkansas River and the Rio Grande, 1836–1845 Texas Annexation of 1845 Historical political divisions of the United States in the present State of Wyoming: Unorganized territory created by the Louisiana Purchase, 1803–1804 District of Louisiana, 1804–1805 Territory of Louisiana, 1805–1812 Territory of Missouri, 1812–1821 Adams-Onís Treaty of 1819 Unorganized territory previously the western portion of the Missouri Territory, 1821–1854 Disputed territory created by the Texas Annexation, 1845–1850 Compromise of 1850 Unorganized territory created by the Oregon Treaty, 1846–1848 Unorganized territory created by the Treaty of Guadalupe Hidalgo, 1848–1850 Territory of Oregon, 1848–1859 State of Deseret (extralegal), 1849–1850 Territory of Utah, 1850–1896 Territory of Nebraska, 1854–1867 Territory of Washington, 1853–1889 Territory of Jefferson (extralegal), 1859–1861 Territory of Dakota, 1861–1889 Territory of Idaho, 1863–1890 Territory of Wyoming, 1868-1890 State of Wyoming since 1890

See also History of Wyoming Timeline of Wyoming history Native Americans in the United States Territorial evolution of the United States Nueva España La Louisiane La Luisiana Louisiana Purchase District of Louisiana Louisiana Territory Missouri Territory Mexican Empire Republic of Texas Oregon Territory Utah Territory Washington Territory Nebraska Territory Dakota Territory Idaho Territory Wyoming Territory State of Wyoming

References

External links State of Wyoming website Wyoming State Historical Society