Visit the SDCAS table at the Bicentennial Celebration which will be held on February 11, 2023. It is organized by San Diego County Parks, of the 1823 land which created Rancho Los Penasquitos, the first Mexican land grant within present-day San Diego County, now part of Los Penasquitos Canyon Preserve. The first house on that site was a modest adobe built in 1824. The building was expanded in 1862. The historic adobe ranch house as we know it today has been restored by the County to reflect life at the rancho in the 1860s through the 1880s.

The Bicentennial Celebration will take place February 11, 2023, as a free, family-friendly event. Activities planned will focus on historical interpretation and environmental education, and will include ranch house tours, guided hikes, talks, hands on activities, food vendors, and more. Archaeologist Dr. Susan Hector will give a historical talk. Lillian Barnes of San Diego Audubon said Audubon volunteers might be able to lead birding walks.