District 13

District 13 was one of the thirteen districts of Panem. Its industry was nuclear weapons. It was supposedly obliterated during the Dark Days as a warning to the other twelve districts of the Capitol's might. The district is now said to be uninhabitable, the ruins supposedly still smoldering from the toxic bombs dropped upon it. Unbeknownst to the majority of Panem's populace, District 13 was also responsible for the research and development of nuclear- and fission-based technology before the Dark Days. Though it did have a few graphite mines, graphite mining was not the principal industry in District 13.