Idaho National Laboratory

Take a self-guided tour through the first nuclear reactor to produce electrical power, first breeder reactor, and first reactor to use plutonium as fuel.

USS Hawkbill with the "devil" hull number 666 was a nuclear-powered fast attack submarine. After the decomissioning in 2001, her sail was preserved and donated to Arco, the place where development of nuclear submarine propulsion began in nearby laboratories. It is on display in a little park along the main street.

The mountain towers above the city and the cliffs are covered with numbers. Since 1920 the graduates of the local high school paint the year on them. The locals try to fool the visitors by telling them the numbers correspond to high water marks of the Big Lost River.