Portal:Colorado

The Colorado Portal

Colorado is the state of the United States of America that encompasses most of the Southern Rocky Mountains as well as the northeastern portion of the Colorado Plateau and the high western edge of the Great Plains. Admitted to the Union on August 1, 1876, Colorado became the 38th U.S. state. Colorado ranks 21st in population, eighth in total area, and first in mean elevation among the 50 U.S. states. Fifty-five of the 124 highest major mountain peaks of North America rise in Colorado. The United States Census Bureau estimates that the population of the State of Colorado was 5,957,493 on July 1, 2024, an increase of +3.18% since the 2020 United States Census. Denver is the state capital, the most populous city, and the heart of the most populous metropolitan area of the Rocky Mountain Region. Colorado Springs is the state's second most populous city. While the population of the Front Range Urban Corridor exceeds five million, many rugged portions of the state remain pristine wilderness.

WikiProject Colorado

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Colorado Events

  • Wikimedia US Mountain West Winter 2026 online meeting, Tuesday, February 10, 2026, 8:00-9:00 PM MST
  • Wikimedia US Mountain West Spring 2026 online meeting, Tuesday, May 12, 2026, 8:00-9:00 PM MDT
  • Wikimedia US Mountain West Summer 2026 online meeting, Tuesday, August 11, 2026, 8:00-9:00 PM MDT
  • Wikimedia US Mountain West Autumn 2026 online meeting, Tuesday, November 10, 2026, 8:00-9:00 PM MST
  • Events elsewhere

Colorado Facts

State of Colorado

Class 2. John Hickenlooper (D) (2021–)
Class 3. Michael Bennet (D) (2009–)
1. Diana DeGette (D) (1997–)
2. Joe Neguse (D) (2019–)
3. Jeff Hurd (R) (2025-)
4. Lauren Boebert (R) (2025-)
5. Jeff Crank (R) (2025-)
6. Jason Crow (D) (2019–)
7. Brittany Pettersen (D) (2023-)
8. Gabe Evans (R) (2025–)

State Symbols

State flag:                 State seal:
State motto: NIL SINE NUMINE (Latin: Nothing without providence)
State nickname: The Centennial State
State slogan: Colorful Colorado
State amphibian: Western Tiger Salamander
(Ambystoma mavortium)
State bird: Lark Bunting
(Calamospiza melanocoryus Stejneger)
State cactus: Claret Cup Cactus
(Echinocereus triglochidiatus)
State fish: Greenback Cutthroat Trout
(Oncorhynchus clarki somias)
State flower: Rocky Mountain Columbine
(Aquilegia caerulea)
State grass: Blue Grama
(Bouteloua gracilis)
State insect: Colorado Hairstreak Butterfly
(Hypaurotis cysaluswas)
State mammal: Rocky Mountain Bighorn Sheep
(Ovis canadensis)
State pets: Colorado shelter pets
(Canis lupus familiaris & Felis catus)
State reptile: Western Painted Turtle
(Chrysemys picta bellii)
State tree: Colorado Blue Spruce
(Picea pungens)
State fossil: Stegosaurus
(Stegosaurus armatus)
State gemstone: Aquamarine
State mineral: Rhodochrosite
State rock: Yule Marble
State soil: Seitz soil
State folk dance: Square Dance
State ship: USS Colorado (SSN-788)
State songs: Where the Columbines Grow & Rocky Mountain High
State sport: Pack Burro Racing
State highway route marker:
State tartan:
Commemorative U.S. coin:
Commemorative U.S. stamp:

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Featured article -

The Colorado River at Horseshoe Bend, Arizona, a few miles below Glen Canyon Dam

The Colorado River (Spanish: Río Colorado) is one of the principal rivers (along with the Rio Grande) in the Southwestern United States and in northern Mexico. The 1,450-mile-long (2,330 km) river, the 5th longest in the United States, drains an expansive, arid watershed that encompasses parts of seven U.S. states and two Mexican states. The name Colorado derives from the Spanish language for "colored reddish" due to its heavy silt load. Starting in the central Rocky Mountains of Colorado, it flows generally southwest across the Colorado Plateau and through the Grand Canyon before reaching Lake Mead on the Arizona–Nevada border, where it turns south toward the international border. After entering Mexico, the Colorado approaches the mostly dry Colorado River Delta at the tip of the Gulf of California between Baja California and Sonora.

Known for its dramatic canyons, whitewater rapids, and eleven U.S. National Parks, the Colorado River and its tributaries are a vital source of water for 40 million people. An extensive system of dams, reservoirs, and aqueducts divert almost its entire flow for agricultural irrigation and urban water supply. Its large flow and steep gradient are used to generate hydroelectricity, meeting peaking power demands in much of the Intermountain West. Intensive water consumption has dried up the lower 100 miles (160 km) of the river, which has rarely reached the sea since the 1960s. (Full article...)

Selected mountain -

West Spanish Peak 13,632 feet (4155 m)
The highest summit of the Spanish Peaks of Colorado.

Selected biography - 

(Full article...)

Selected article -

Haywood c. 1913

William Dudley Haywood (February 4, 1869 – May 18, 1928), nicknamed "Big Bill", was an American labor organizer and founding member and leader of the Industrial Workers of the World (IWW) and a member of the executive committee of the Socialist Party of America. During the first two decades of the 20th century, Haywood was involved in several important labor battles, including the Colorado Labor Wars, the Lawrence Textile Strike, and other textile strikes in Massachusetts and New Jersey.

Haywood was an advocate of industrial unionism, and syndicalism, a labor philosophy that favors organizing all workers in an industry under one union, regardless of the specific trade or skill level; this was in contrast to the craft unions that were prevalent at the time, such as the AFL. He believed that workers of all ethnicities should be united, and favored direct action over political action. (Full article...)

Selected image -

A steam locomotive and train of the Durango and Silverton Narrow Gauge Railroad in Silverton, Colorado.
Photograph by Michael Gäbler, 1997

National Parks in Colorado

Rocky Mountain National Park

The 23 national parks in Colorado:

Interesting facts-

Did you know (auto-generated) -

Colorado United States U.S. counties
U.S. History U.S. Roads U.S. Streets
Geology Mountains Rivers
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