Colorado Territory
| Territory of Colorado | |||||
| Organized incorporated territory of the United States | |||||
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| Capital |
Colorado City (1861–1862) Golden City (1862–1867) Denver City (1867–1876) |
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| Government | Organized incorporated territory | ||||
| Governor | List of Governors | ||||
| History | |||||
| • | Organic act | February 28, 1861 | |||
| • | Statehood | August 1, 1876 | |||
The Territory of Colorado was an organized incorporated territory of the United States that existed from February 28, 1861, until August 1, 1876, when it was admitted to the Union as the State of Colorado.
The territory was organized in the wake of the Pike's Peak Gold Rush of 1858–1861 which brought the first large concentration of white settlement to the region. The organic act creating the territory was passed by Congress and signed by President James Buchanan on February 28, 1861, during the secessions by Southern states that precipitated the American Civil War. The boundaries of the Colorado Territory were identical with those of the current State of Colorado. The organization of the territory helped solidify Union control over a mineral-rich area of the Rocky Mountains. Statehood was regarded as fairly imminent, but territorial ambitions for statehood were thwarted at the end of 1865 by a veto by President Andrew Johnson. Statehood for the territory was a recurring issue during the Ulysses Grant administration, with Grant advocating statehood against a less willing Congress during Reconstruction. The Colorado Territory ceased to exist when the State of Colorado was admitted to the Union in 1876.
East of the 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. 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. The Eastern Plains were held much more loosely by the intermixed Cheyenne and Arapaho, as well as by the Pawnee, Comanche and Kiowa. In 1861, ten days before the establishment of the territory, the Arapaho and Cheyenne agreed with the U.S. to give up most their areas of the plains to white settlement but were allowed to live in their larger traditional areas, so long as they could tolerate homesteaders near their camps. By the end of the American Civil War in 1865, the Native American presence had been largely eliminated from the High Plains.
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