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2025 Mt. Diablo Beacon Lighting Ceremony for Pearl Harbor Remembrance

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Sunday, December 7, 2025 - 3:00 pm to 5:30 pm | Cost: FREE
Cal State East Bay – Concord Campus | 4700 Ygnacio Valley Rd, Concord, CA 94521

Event Details

The Eye of Diablo

Commemorating Pearl Harbor Remembrance Day

Please join us on December 7 at the California State University East Bay Concord Campus, 4700 Ygnacio Valley Road, Concord, for the annual Beacon lighting ceremony. Parking is free.

  • 3 PM: USS Arizona Reception and Exhibit
  • 3:45 PM: Ceremony Begins (Oak Room)
  • 5 PM: Beacon Lighting

December 7: day that will live in infamy, and in our hearts forever.

The Beacon was originally lit by Charles Lindbergh in 1928 to assist in the early days of commercial aviation. The Beacon shone from the summit of Mount Diablo each night until December 8, 1941, the day after the attack on Pearl Harbor.

It was not relit until December 7, 1964, when Fleet Admiral Chester Nimitz, Commander in Chief of Pacific Forces during World War II, attended a ceremony on Mount Diablo’s summit in commemoration of the survivors of Pearl Harbor. He suggested that the Beacon be lit every December 7th to honor those who served and sacrificed.

Since that day in 1964, the Pearl Harbor Survivors Association and now the Sons and Daughters of Pearl Harbor Survivors with co-sponsor Save Mount Diablo have memorialized Pearl Harbor Day by turning on the summit Beacon atop Mount Diablo. The Beacon now shines on December 7th each year.

Disclaimer: Please double check event information with the event organizer as events can be canceled, details can change after they are added to our calendar, and errors do occur.


Cost: FREE
Categories: **Annual Event**, *Top Pick*, In Person, Outdoors, Tree + Holiday Lightings
Address: 4700 Ygnacio Valley Rd, Concord, CA 94521