The mission of Rancho Los Cerritos Historic Site is to restore and preserve the structure and grounds; collect appropriate resources; and interpret the relationship of the Rancho's diverse peoples to the development of the Long Beach area. This will be accomplished through a broad spectrum of educational programs, exhibits and publications designed to provide local residents, students, and other visitors with an understanding of the forces that shaped this region.
Once part of an early Spanish land grant, the 27,000 acre Rancho Los Cerritos evolved from cattle ranch to sheep ranch to private home before becoming a City Museum in 1955. The current 4.7 acre site, a National, State and local Historic Landmark, includes an 1844 two story Monterey-Colonial adobe and historic gardens, houses a California History Research Library and hosts many educational programs fro families and youth. The Rancho is open Wednesday through Sunday 1 -5 pm.