The World’s First Nuclear Reactor

The World’s First Nuclear Reactor was rebuilt at this site in 1943 after initial operation The University of Chicago.
This reactor (CP-2) and the first heavy water moderated reactor (CP-3) were major facilities around which developed The Argonne National Laboratory.
This site was released by the laboratory in 1956 and the US Atomic Energy then buried the reactors here.
Submitted by: L Sapp