The following outline traces the territorial evolution of the U.S. State of Nevada .
The following outline traces the territorial evolution of the U.S. State of Nevada .
Territorial evolution of Arizona 
Territorial evolution of California 
Territorial evolution of Idaho 
Territorial evolution of Oregon 
Territorial evolution of Utah 
The Treaty of Guadalupe Hidalgo officially ended the Mexican–American War (1846–1848). It was signed on 2 February 1848 in the town of Guadalupe Hidalgo.
The Territory of New Mexico was an organized incorporated territory of the United States from September 9, 1850, until January 6, 1912. It was created from the U.S. provisional government of New Mexico, as a result of Nuevo México becoming part of the American frontier after the Treaty of Guadalupe Hidalgo. It existed with varying boundaries until the territory was admitted to the Union as the U.S. state of New Mexico. This jurisdiction was an organized, incorporated territory of the US for nearly 62 years, the longest period of any territory in the contiguous United States.
The Mexican Cession is the region in the modern-day southwestern United States that Mexico originally controlled, then ceded to the United States in the Treaty of Guadalupe Hidalgo in 1848 after the Mexican–American War. This region had not been part of the areas east of the Rio Grande that had been claimed by the Republic of Texas, though the Texas annexation resolution two years earlier had not specified the southern and western boundary of the new state of Texas. At roughly 529,000 square miles (1,370,000 km2), the Mexican Cession was the third-largest acquisition of territory in U.S. history, surpassed only by the 827,000-square-mile (2,140,000 km2) Louisiana Purchase and the 586,000-square-mile (1,520,000 km2) Alaska Purchase.
The Territory of Nevada (N.T.) was an organized incorporated territory of the United States that existed from March 2, 1861, until October 31, 1864, when it was admitted to the Union as the State of Nevada.
The Territory of Utah was an organized incorporated territory of the United States that existed from September 9, 1850, until January 4, 1896, when the final extent of the territory was admitted to the Union as the State of Utah, the 45th state. At its creation, the Territory of Utah included all of the present-day State of Utah, most of the present-day state of Nevada save for Southern Nevada, much of present-day western Colorado, and the extreme southwest corner of present-day Wyoming.
The territory of the United States and its overseas possessions has evolved over time, from the colonial era to the present day. It includes formally organized territories, proposed and failed states, unrecognized breakaway states, international and interstate purchases, cessions, and land grants, and historical military departments and administrative districts. The last section lists informal regions from American vernacular geography known by popular nicknames and linked by geographical, cultural, or economic similarities, some of which are still in use today.
Carlos Antonio Carrillo was a Californio politician, military officer, and ranchero. He was nominated to serve as Governor of Alta California from 1837–38, in opposition to Juan Bautista Alvarado's rule. However, after failing to subdue Alvarado, Carrillo relinquished his claim to the governorship to Alvarado in 1838.
The following outline is provided as an overview of and topical guide to the U.S. state of Nevada:
The following outline is provided as an overview of and topical guide to Utah:
The following outline is provided as an overview of and topical guide to the U.S. state of Wyoming:
The area currently occupied by the U.S. State of New Mexico has undergone numerous changes in occupancy and territorial claims and designations. This geographic chronology traces the territorial evolution of New Mexico.
The following outline traces the territorial evolution of the U.S. State of Wyoming.
The following chronology traces the territorial evolution of the U.S. State of Montana.
The following chronology traces the territorial evolution of the U.S. State of Idaho.
The following outline traces the territorial evolution of the U.S. State of Washington.
The following outline traces the territorial evolution of the U.S. state of Oregon.
The following timeline traces the territorial evolution of the U.S. State of Utah.
The following timeline traces the territorial evolution of the U.S. State of Arizona.
The following timeline traces the territorial evolution of California, the thirty-first state admitted to the United States of America, including the process of removing Indigenous Peoples from their native lands, or restricting them to reservations.
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