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Most of the radioactive contamination from Rocky Flats came from three sources: a catastrophic fire in 1957, [ 19 ] leaking barrels in an outdoor storage area in 1964–1968, and another, less severe fire in 1969. [ 20 ] Plutonium, used to construct the weapons' fissile components, can spontaneously combust at room temperature in air.
Room damaged by 1969 Rocky Flats Fire. Control panel, Critical Mass Laboratory, 1970. The Rocky Flats Plant was a U.S. manufacturing complex that produced nuclear weapons parts in the western United States, near Denver, Colorado. [ 2 ] The facility's primary mission was the fabrication of plutonium pits, [ 3 ] which were shipped to other ...
Website. Rocky Flats National Wildlife Refuge. The Rocky Flats National Wildlife Refuge is 5,237-acre (21.19 km 2) 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.
The high plains of Colorado may be considered a part of the midwestern United States. It encompasses most of the Southern Rocky Mountains, as well as the northeastern portion of the Colorado Plateau and the western edge of the Great Plains. Colorado is the eighth most extensive and 21st most populous U.S. state.
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, [1] operated by the United States Army throughout the later 20th century and was controversial among local residents until its closure in 1992. [citation ...
An off-site testing facility was established in Colorado Springs by NORAD in late 1979 or early 1980 so that system changes could be tested off-line before they were moved into production. Following another failure in 1980, a bad computer chip was updated, and staff and commander processes were improved to better respond to warnings. [36]
This is a list of Superfund sites in the U.S. State of Colorado designated under the Comprehensive Environmental Response, Compensation, and Liability Act of 1980 (CERCLA) environmental law. The CERCLA federal law authorized the United States Environmental Protection Agency (EPA) to create a list of polluted locations requiring a long-term ...
Montana City was established north of the site of the 1857 find by William Green Russell and was the first settlement of modern Denver. The gold findings were unsatisfactory and the settlement was abandoned in 1859. [95] [96] The Pike's Peak Gold Rush began as other prospecting parties looked for gold at other Colorado sites. [97] [86]: 37–40