LM is responsible for historically significant sites, related to the Manhattan Project, the Cold War nuclear weapons complex, and the nation’s early atomic energy program. Listed below are LM sites that have associated listings on the National Register of Historic Places and sites that have associated structures recorded by the Historic American Engineering Record program in recognition of their importance in American history.

Berkeley, California, Site

Gilman Hall, exterior view.

Gilman Hall, exterior view.

Boiling Nuclear Superheater (BONUS), Puerto Rico, Decommissioned Reactor Site

Boiling Nuclear Superheater (BONUS), Puerto Rico, Decommissioned Reactor Site.

Boiling Nuclear Superheater (BONUS), Puerto Rico, Decommissioned Reactor Site.

Chicago South, Illinois, Site

Room 405, George Herbert Jones Laboratory, University of Chicago.

Room 405, George Herbert Jones Laboratory, University of Chicago.

Durango, Colorado, Processing Site

Durango, Colorado, Processing Site

Distant view of smelter stack and large tailings pile, looking west - San Juan & New York Mining & Smelting Company, Smelter Stack, State Route 160, Durango, La Plata County, CO.

Mound, Ohio, Site

Mound, Ohio, Site, A CERCLA and/or RCRA Site

View looking southeast from the roof of OSW Building, toward E Building (center ground of image). Part of H Building is in the immediate foreground.

Naturita, Colorado, Processing Site