Javascript is turned off in your web browser. Please turn it on to take full advantage fo this site, then refresh the page.

The B Reactor National Historic Landmark

The B Reactor National Historic Landmark is the world's first full-scale plutonium production reactor and part of the Manhattan Project National Historical Park administered by the U.S. Department of Energy and the National Park Service. Sign up for a tour and learn more about the people, events, science, and engineering that led to the creation of the atomic bombs that helped bring an end to World War II.

2024 Tour Season

The U.S. Department of Energy offers free public tours of the B Reactor to people of all ages and nationalities. The time commitment for each tour is 4 hours. Tours are offered at 8:30 am or 11:45 am, depending on the date. Click on the Register Here button on the upper right to begin the registration process.

Planned tour dates in 2024 include:

  • March 29-30
  • April 1-6, 8-13, 15-20, 22-27, and 29-30
  • May 1-4, 6-11, 13-18, 20-26, and 27-31
  • June 1, 3-8, 10-15, 17-22, and 24-29
  • July 1-6, 8-13, 15-19, 22-27, and 29-31
  • Additional tour dates added:

  • August 1-3, 5-10, 12-17, 19-24, and 26-31
  • September 1-7, 9-14, 16-21, 23-28, and 30
  • October 1-5, 7-12, 14-19, 21-26, and 28-31

  • Tour Details

    • Free of charge
    • Open to all ages
    • Open to visitors from around the world
    • Cameras, cell phones, and other recording devices are allowed
    • Food and drinks (non-alcoholic) are allowed on the bus; bottled water only inside B Reactor
    • There is no food or drink for sale at the visitor center
    • There are restrooms at the B Reactor
    • Tours begin and end at the visitor center located at 2000 Logston Blvd. Richland WA.
    • Total time commitment is 4 hours
      • Tour experience begins promptly
      • Bus ride to B Reactor is about 45 minutes with interpretation along the way
      • Visitors will have about two hours at B Reactor

    Group/School Tours

    A limited number of school and group tours may be available with a minimum of 20 participants on a first-come, first-served basis. Please submit requests to and include the following information:

    • Group/School Name
    • Transportation (own or have access to bus, or capability of procuring charter bus)
    • Number of participants (students + teachers/chaperones)
    • Requested tour date/time (please include alternate dates for flexibility)
    • Purpose of the tour (e.g., current course of study for students, community organization, reunion, etc.)
    • Is there a special focus for tour participants (e.g. technical or scientific interest)?

    Staff will evaluate your request to determine feasibility and will contact you within one 1-2 business days. 

    We may also be able to help you reserve seats for your large group as part of a scheduled public tour.   

    If you have any questions, please call the visitor center, at (509) 376-1647.

    Web Links:

    Learn more about the world-changing history, science and engineering behind the Manhattan Project and B Reactor, as well as the history of Native American and early settler populations at the Hanford Site, with videos produced by the B Reactor Museum Association and the Atomic Heritage Foundation.

    For questions or comments, please send a message to the webmaster.
    Last Updated: 04/18/2021 05:25:25 AM

    Learn about the Department of Energy's Vulnerability Disclosure Program