page_title: Rocky Mountain Arsenal
hierarchical_section_title: Rocky Mountain Arsenal
caption_attribution_description: English: Rocky Mountain Arsenal south entrance
context_page_description: 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.
  Much of the site is now protected as the Rocky Mountain Arsenal National Wildlife Refuge.
context_section_description: 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.
  Much of the site is now protected as the Rocky Mountain Arsenal National Wildlife Refuge.
caption: Rocky Mountain Arsenal, south entrance. (photo 1960)
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