The Colorado Territory as drawn in 1860 from the Utah, Nebraska, Kansas, and New Mexico Territories. Colorado appears to have a rectangular border at this scale, but there are in fact some slight deviations from a straight line along its southern border.
The Utah Territory upon its creation, with modern state boundaries shown for reference
Map of the later Arizona and New Mexico Territories, split from the original New Mexico Territory of 1851, showing existing counties
The Colorado Territory as drawn in 1860 from the Utah, Nebraska, Kansas, and New Mexico Territories. Colorado appears to have a rectangular border at this scale, but there are in fact some slight deviations from a straight line along its southern border.
The evolution of the Utah Territory from its creation by Congress in 1850 to 1896, when statehood was granted
Proposed boundaries for the earlier federal State of New Mexico, 1850
The Utah Territory upon its creation, with modern state boundaries shown for reference
Map of the later Arizona and New Mexico Territories, split from the original New Mexico Territory of 1851, showing existing counties
New Mexico Territory, 1852
The Gadsden Purchase, 1853

The territory was organized by an Organic Act of Congress in 1850, on the same day that the State of California was admitted to the Union and the New Mexico Territory was added for the southern portion of the former Mexican land.

- Utah Territory

The request was approved at the same time that the Utah Territory was created to the north.

- New Mexico Territory

East of the Continental Divide, the new territory included the western portion of the Kansas Territory, as well as some of the southwestern Nebraska Territory, and a small parcel of the northeastern New Mexico Territory.

- Colorado Territory

On the western side of the divide, the territory included much of the eastern Utah Territory, all of which was strongly controlled by the Ute and Shoshoni.

- Colorado Territory

In 1861 a large portion of the eastern area of the territory was reorganized as part of the newly created Colorado Territory.

- Utah Territory

The Colorado Territory was established by the "Colorado Organic Act" on February 28, 1861, with the same boundaries that would ultimately constitute the State of Colorado.

- New Mexico Territory

2 related topics with Alpha

Overall

Colorado

0 links

State in the Mountain West subregion of the Western United States.

State in the Mountain West subregion of the Western United States.

Ruins of Cliff Palace at Mesa Verde National Park. Photo by Gustaf Nordenskiöld, 1891
Great Kiva at Chimney Rock in the San Juan Mountains of Southwestern Colorado. It is said to have been built by the Ancient Pueblo peoples.
The Spanish discovering the Colorado River, namesake of the state, in 1540, by Augusto Ferrer-Dalmau. García López de Cárdenas can be seen overlooking the Grand Canyon.
Map of the Mexican Cession, with the white representing the territory the United States received from Mexico (plus land ceded to the Republic of Texas) after the Mexican–American War. Well over half of Colorado was received during this treaty.
The Anasazi Heritage Center in Dolores
The territories of New Mexico, Utah, Kansas, and Nebraska before the creation of the Territory of Colorado
Mount of the Holy Cross, photographed by William Henry Jackson in 1874
The Georgetown Loop of the Colorado Central Railroad as photographed by William Henry Jackson in 1899
Three 10th Mountain Division skitroopers above Camp Hale in February 1944.
The arid high plains in Southeastern Colorado
Front Range Peaks west of Denver
Tenmile Range and Dillon Reservoir near Breckenridge
Grays Peak at 4352 m is the highest point on the Continental Divide in North America
The high desert lands that make up the San Luis Valley in Southern Colorado
Maroon Bells, at 14163 ft, is part of White River National Forest and a tourist destination
The Colorado National Monument near Grand Junction is made up of high desert canyons and sandstone rock formations
Köppen climate types of Colorado, using 1991-2020 climate normals.
Breckenridge naturalist Edwin Carter with a mounted gray wolf killed in the Colorado Rockies, ca. 1890–1900.
An enlargeable map of the 64 counties of the State of Colorado
An enlargeable map of the 17 core-based statistical areas of Colorado
Colorado population density map
Denver Energy Center lies in the Denver financial district along 17th Street, known as the Wall Street of the West
Corn growing in Larimer County
An oil well in western Colorado
History Colorado Center in Denver
Street art in Denver
The Colorado Rockies baseball club at Coors Field
Empower Field at Mile High in Denver, home field of the Denver Broncos and the Denver Outlaws
Ball Arena, home of the Denver Nuggets, the Colorado Avalanche, and the Colorado Mammoth
Dick's Sporting Goods Park, home of the Colorado Rapids
A Colorado state welcome sign
The main terminal of Denver International Airport evokes the peaks of the Front Range.
The westbound and eastbound California Zephyrs meet in the Glenwood Canyon.
Colorado Christian University
Colorado College
Colorado Mesa University
Colorado School of Mines
Colorado State University
Regis University
The United States Air Force Academy
The University of Colorado Boulder
The University of Denver
Fort Carson
Peterson Space Force Base
United States Air Force Academy
The Southern Ute Tribal Administration Building
The Ute Mountain Ute Tribal Office Complex
Lowry Pueblo in Canyons of the Ancients National Monument
Great Sand Dunes National Park and Preserve
Spruce Tree House in Mesa Verde National Park

The Territory of Colorado was organized on February 28, 1861, and on August 1, 1876, U.S. President Ulysses S. Grant signed Proclamation 230 admitting Colorado to the Union as the 38th state.

Instead, the Compromise of 1850 divided the Mexican Cession and the northwestern claims of Texas into a new state and two new territories, the state of California, the Territory of New Mexico, and the Territory of Utah.

Map showing North American territorial boundaries leading up to the American Revolution and the founding of the United States: British claims are indicated in red and pink, while Spanish claims are in orange and yellow.

Historic regions of the United States

0 links

The territory of the United States and its overseas possessions has evolved over time, from the colonial era to the present day.

The territory of the United States and its overseas possessions has evolved over time, from the colonial era to the present day.

Map showing North American territorial boundaries leading up to the American Revolution and the founding of the United States: British claims are indicated in red and pink, while Spanish claims are in orange and yellow.
Map showing mid 17th century claims and land grant boundaries. Some colonies seen here are: Nova Scotia (NSc), Territory of Sagadahock (TS), First Province of Maine (Me), New Hampshire (NH), Plymouth (PC), Massachusetts Bay (MBC), New Netherland (NN), New Sweden (NSw), and Lord Baltimore's Land (Md; Maryland)
New World settlements of The Netherlands, collectively called New Netherland
The Massachusetts Bay Colony
French settlements and forts in the so-called Illinois Country, 1763, which encompassed parts of the modern day states of Illinois, Missouri, Indiana and Kentucky)
A 1775 map of the German Coast, a historical region of present-day Louisiana located above New Orleans on the eastern bank of the Mississippi River
Vandalia was the name of a proposed British colony located south of the Ohio River, primarily in what is now the U.S. states of West Virginia and eastern Kentucky
A proposal for the creation of Westsylvania was largely deterred by the Revolutionary War
National Atlas map of United States territorial acquisitions
Seward's Folly. The controversial purchase of Alaska from Russia in 1867 turned out to be a great deal for the U.S. when the area proved to contain a treasure trove of natural resources.
The Oregon Country. The dispute over Oregon, between Britain and the U.S., led to an uneasy, parallel governing of the territory for almost 30 years.
Progression of the Indian Territory separation from the Arkansaw Territory, 1819–1836
Indiana lands acquired through treaties
The first state cessions. The 13 original states ceded their western claims to the federal government, allowing for the creation of the country's first western territories and states.
The Northwest Territory was a large and (at times) ill-defined territory ceded by Great Britain to the U.S. at the end of the Revolutionary War. British troops still occupied parts of the area well past 1800.
United States territorial expansion since 1803, maps by William R. Shepherd (1923)
Census Bureau map depicting territorial acquisitions and effective dates of statehood
The Ohio Country, indicating battle sites between settlers and Native American Tribes, 1775–1794
Selected tract purchases of western New York State
Map of the Ohio Lands
Oklahoma Territory and Indian Territory, along with No Man's Land (also known as the Oklahoma Panhandle). The division of the two territories is shown with a heavy purple line. Together, these three areas would become the State of Oklahoma in 1907.
Pennsylvania land purchases from Native Americans
Post-Civil War military districts were set up to aid in the repatriation process of the southern states during Reconstruction.
The Panama Canal Zone was once a territory of the United States
The boundaries of the State of Deseret, as proposed in 1849
Animated map of secession and repatriation of the Confederacy, 1860–1870
The proposed State of Superior. The red areas show the counties of the Upper Peninsula that are generally accepted as being part of the proposed state. The pink areas show the counties of the "expanded" proposal.
The failed State of Lincoln, with its proposed 1868 boundaries
The Philippines was a commonwealth of the United States, 1935–1946
Worldwide location of current U.S. insular areas:
The Commonwealth of Puerto Rico

Territory of New Mexico (1850–1912) preceded by Nuevo Mexico (the southern part was known as the Arizona Territory (1861–1864) by the Confederate States of America); split into the Arizona Territory and the State of New Mexico.

Territory of Utah (1850–1896) preceded by Alta California and the unrecognized State of Deseret; split into the State of Utah, the Nevada Territory, additions to the Colorado Territory and additions to the Wyoming Territory.

Territory of Colorado (1861–1876) preceded by parts of the territories of Kansas, Utah, New Mexico and Nebraska; became the State of Colorado. (See also Jefferson Territory.)