Denver is the central city of a conurbation region in the U.S. state of Colorado. The conurbation includes one continuous region consisting of the six central counties of Adams, Arapahoe, Broomfield, Denver, Douglas, and Jefferson. The Denver region is part of the Front Range Urban Corridor and its metropolitan planning organization is the Denver Regional Council of Governments.
Arvada is a home rule municipality on the border between Jefferson and Adams counties, Colorado, United States. The city population was 124,402 at the 2020 United States Census, with 121,510 residing in Jefferson County and 2,892 in Adams County. Arvada is the seventh most populous city in Colorado. The city is a part of the Denver–Aurora–Lakewood, CO Metropolitan Statistical Area and the Front Range Urban Corridor. The Olde Town Arvada historic district is 7 miles (11 km) northwest of the Colorado State Capitol in Denver.
Broomfield is a consolidated city and county located in the U.S. state of Colorado. It has a consolidated government which operates under Article XX, Sections 10–13 of the Constitution of the State of Colorado. Broomfield's population was 74,112 at the 2020 United States Census, making it the 15th most populous municipality and the 12th most populous county in Colorado. Broomfield is a part of the Denver–Aurora–Lakewood, CO Metropolitan Statistical Area and the Front Range urban corridor.
The City of Westminster is a home rule municipality located in Adams and Jefferson counties, Colorado, United States. The city population was 116,317 at the 2020 United States Census with 71,240 residing in Adams County and 45,077 residing in Jefferson County. Westminster is the eighth most populous city in Colorado. The city is a part of the Denver–Aurora–Lakewood, CO Metropolitan Statistical Area and the Front Range Urban Corridor. The Westminster Municipal Center is located 9 miles (14 km) north-northwest of the Colorado State Capitol in Denver.
Superior is a statutory town in Boulder County, Colorado, United States, with a small, uninhabited segment of land area extending into Jefferson County. According to the 2020 census, the population of the city was 13,094.
The Duwamish River is the name of the lower 12 miles (19 km) of Washington state's Green River. Its industrialized estuary is known as the Duwamish Waterway. Although heavily polluted, it is an important habitat for the wildlife. Important to the Duwamish people, the Duwamish Longhouse and Cultural Center is on the west bank of the river and several parks have indigenous Lushootseed names.
ASARCO is a mining, smelting, and refining company based in Tucson, Arizona, which mines and processes primarily copper. The company has been a subsidiary of Grupo México since 1999.
The Rocky Flats Plant was a United States manufacturing complex that produced nuclear weapons parts in the western United States, near Denver, Colorado. The facility's primary mission was the fabrication of plutonium pits, which were shipped to other facilities to be assembled into nuclear weapons. Operated from 1952 to 1992, the complex was under the control of the U.S. Atomic Energy Commission (AEC), succeeded by the Department of Energy (DOE) in 1977.
The Rocky Mountain Arsenal was a United States chemical weapons manufacturing center located in the Denver Metropolitan Area in Commerce City, Colorado. The site was completed December 1942, operated by the United States Army throughout the later 20th century and was controversial among local residents until its closure in 1992.
The Rocky Mountain Arsenal National Wildlife Refuge is a 15,988-acre (24.981 sq mi) National Wildlife Refuge located adjacent to Denver and Commerce City, Colorado, in the United States. It is approximately 8 miles (13 km) northeast of downtown Denver. The refuge is on the grounds of the former Rocky Mountain Arsenal, a United States Army chemical weapons manufacturing facility. The site was designated a national wildlife refuge in 1992 by the United States Congress, and underwent a costly environmental cleanup in order to remove pollutants. The refuge is managed by the United States Fish and Wildlife Service. More than 330 species of wildlife inhabit the refuge, including raptors, deer, raccoons, coyotes, white pelicans, black-footed ferrets, black-tailed prairie dogs, and bison.
Two Ponds National Wildlife Refuge is the smallest urban unit of the National Wildlife Refuge System. The refuge is located in the City of Arvada, Jefferson County, Colorado, United States. The refuge consists of 72.2 acres (29.2 ha) of land, including 63.2 acres (25.6 ha) of uplands, 9.0 acres (3.6 ha) of wetlands, and three small ponds. The site sits in the midst of a region of suburban expansion of the Denver Metropolitan Area, and was saved from development in 1990 by a group of concerned people, now a Friend's group entitled the Two Ponds Preservation Foundation. The refuge was established in 1992 and continues to protect various animals as well as unique high prairie plants, and offers visitors many activities, including hiking, guided tours, and group educational opportunities.
State Highway 470 is a freeway located in the southwestern portion of the Denver Metro Area. It is also the southwestern portion of the Denver Metro area's beltway. SH 470 begins at US 6 in Golden and heads south interchanging Interstate 70 and then US 285 outside Morrison. After leaving Morrison, it then heads east passing by Littleton and through Highlands Ranch before interchanging Interstate 25 in Lone Tree, where the freeway continues as a tollway and where the state highway designation ends.
The Rocky Flats National Wildlife Refuge is 5,237-acre (21.19 km2) National Wildlife Refuge in the United States, located approximately 16 miles (26 km) northwest of Denver, Colorado. The refuge is situated west of the cities of Broomfield and Westminster and situated north of the city of Arvada.
This is an alphabetical list of articles related to the U.S. State of Colorado.
The following outline is provided as an overview of and topical guide to the U.S. state of Colorado:
The Rocky Flats Plant, a former United States nuclear weapons production facility located about 15 miles (24 km) northwest of Denver, caused radioactive contamination within and outside its boundaries. The contamination primarily resulted from two major plutonium fires in 1957 and 1969 and from wind-blown plutonium that leaked from barrels of radioactive waste. Much lower concentrations of radioactive isotopes were released throughout the operational life of the plant from 1952 to 1992, from smaller accidents and from normal operational releases of plutonium particles too small to be filtered. Prevailing winds from the plant carried airborne contamination south and east, into populated areas northwest of Denver.
The Front Range Urban Corridor is an oblong region of urban population located along the eastern face of the Southern Rocky Mountains, encompassing 18 counties in the US states of Colorado and Wyoming. The corridor derives its name from the Front Range, the mountain range that defines the western boundary of the corridor which serves as a gateway to the Rocky Mountains. The region comprises the northern portion of the Southern Rocky Mountain Front geographic area, which in turn comprises the southern portion of the Rocky Mountain Front geographic area of Canada and the United States. The Front Range Urban Corridor had a population of 5,055,344 at the 2020 Census, an increase of +16.65% since the 2010 Census.
The California Gulch site consists of approximately 18 square miles in Lake County, Colorado. The area includes the city of Leadville, parts of the Leadville Historic Mining District and a section of the Arkansas River from the confluence of California Gulch downstream to the confluence of Two-Bit Gulch. The site was listed as a Superfund site in 1983.
