Calendar Year 2023 Tour Dates

Pajarito Laboratory Site

Wednesday, March 29 and Thursday, March 30


Wednesday, October 18 and Thursday, October 19

Registration time/date TBD

Each tour lasts approximately 3.5 hours. There are 2 tours per day with a maximum of 25 people per tour.

Safety and security are vitally important at Los Alamos National Laboratory. Your eligibility to visit a national security site will be verified after you register.



Tour participants:

  • Must be U.S. citizens with original documentation to support
  • Must be at least 18 years of age
  • COVID-19 vaccination is required with original document to support
    Must be able to walk short distances, stand for 30 minutes, climb stairs, and traverse over uneven surfaces
  • Must wear closed-toe, closed-heel, sturdy footwear, and long pants
  • Are not allowed to bring cell phones, cameras, or recording devices of any kind onto the site.
  • Additional requirements, as listed in the registration process