National and State Register
Rocky Flats Plant
Jefferson County
The nationally significant Rocky Flats Plant functioned as a major center for the development and production of atomic weapons for the US military.
It operated from 1951 until its closure in 1989 as the Cold War ended. Its particular significance stems from its role as the sole producer of triggers for nuclear weapons from 1964 to 1989.
National Register
Address
Colo. Hwy. 93, north of Golden
Site Number
5JF.1227