Rocky Flats Plant

Rocky Flats Plant was a facility for manufacturing nuclear weapon components in Jefferson County near Denver, covering roughly 10 square miles (26 square kilometers). The site consisted of multiple secured production buildings and administrative complexes surrounded by buffer zones and access roads.

The facility began operations in 1952 and manufactured components for atomic weapons throughout four decades of the Cold War. A federal raid in 1989 led to closure in 1992 due to environmental violations and subsequent decommissioning of the entire site.

The plant represents a period of nuclear armament production that influenced local community perspectives on industrial safety and environmental responsibility.

The former industrial site now functions as a wildlife refuge offering trails for visitors interested in land reclamation. Access follows designated routes with information panels about environmental restoration and animal habitats.

After closure, complete decontamination and decommissioning took over two decades until 2005. The cleaned land then transformed into a protected area for prairie dogs, bison, and birds of prey.

Location: Colorado

Inception: 1952

Website: https://lm.doe.gov/land/sites/co/rocky_flats/rocky.htm

GPS coordinates: 39.88990,-105.20400

Latest update: December 13, 2025 17:02