Sonoma State Historic Park gathers the buildings where California’s Mexican and American eras collided, set around the historic Sonoma Plaza. Visitors come to walk the grounds of the final mission in the California chain and the sites of the 1846 Bear Flag Revolt.
Mission San Francisco Solano anchors the park. Founded in 1823 as the 21st and northernmost California mission, it has whitewashed adobe walls, a restored chapel, and a quiet courtyard. Across Spain Street, the two-story Sonoma Barracks once housed General Mariano Vallejo’s Mexican troops. Its exhibits trace the region’s shift from Indigenous homeland to Mexican frontier to American territory. Nearby, the Toscano Hotel keeps period furnishings that show boardinghouse life in the late 1800s. A short walk or drive west leads to Lachryma Montis, Vallejo’s Gothic Revival home, which he named for the spring on the property.
Visitor Highlights & Practical Info
The park is open daily from 10:00 am to 5:00 pm. It closes on Thanksgiving, Christmas, and New Year’s Day. The gift shop closes at 4:30 pm (California State Parks). One modest admission fee covers same-day entry to the mission, barracks, and Vallejo’s home. Plan on two to three hours to see everything. Weekday mornings are the calmest time to visit. Autumn harvest weekends bring wine-country crowds to the plaza, so arrive early for street parking. Afterward, walk the plaza to see the Bear Flag Monument, then visit the tasting rooms and cafés lining the square.
