Lawrence Livermore National Laboratory



We are easily reached from most of the San Francisco Bay Area. The Site is about 60 highway miles southeast of San Francisco. Its elevations range from 525 feet to 1,750 feet above sea level (current weather conditions)

At Site 300, nature and explosives activities coexist, and all work is performed with safety as the primary concern. We ask that you:

  • Are responsible for your own safety and for environmental considerations at the site.
  • Understand the uniqueness and potential hazards of Site 300 operations.
  • Follow specific check-in and check-out procedures in certain areas.
  • Follow all signs and other procedures.

For more information about visiting Site 300 and LLNL.
For more information about tours.

Site 300 Map