Keywords: Building-9204-3-at-y-12.jpg en Beta 3 was completed in March July 1945 It housed the Beta calutrons 2007-03-08 http //oakridgetoday com/2015/03/27/planning-for-national-park-park-service-tours-jackson-square-k-25-ornl-y-12/ more-54404 Oak Ridge Today Y-12 National Security Complex other versions PD-USGov Uploaded with UploadWizard Y-12 National Security Complex |