Tennessee / Kentucky

Historical marker location:

6110 US-31W, Portland, Tennessee

( Marker is at the intersection of Nashville Road (U.S. 31W) and Rodgers Road (Route 259), on the right when traveling north on Nashville Road.)

The Oak Ridge National Laboratory, located in Oak Ridge, Tennessee, played a crucial role in the development of the atomic bomb during World War II. It was also a key site for nuclear research during the Cold War.