Petaluma Adobe State Historic Park

Petaluma Adobe State Historic Park was the main residence of Rancho Petaluma, the agricultural empire that General Mariano Guadalupe Vallejo one of the most powerful men in the Mexican Province of California from 1834 to 1846.  Vallejo ran his cattle, hide and tallow business, raised sheep, bred horses, and grew numerous crops. The adobe contains authentic furniture and exhibits depicting early rancho life.  The huge adobe building, the largest private rancho in California between 1834 and 1846, was the center of activity on one of the most prosperous private estates established during the Mexican period.  In 1910, Native Sons of the Golden West, Petaluma Parlor #27 purchased what remained of General Mariano G. vallejo's vast adobe ranch house. Over half of the building had succumbed to neglect and the forces of nature. In 1932 it was registered as California State Historical Landmark #18.  After years of work and fundraising, the fully restored historic site was turned over to the State of California in 1951. In 1970, it was registered as a National Historic Landmark. It is preserved as the centerpiece of Petaluma Adobe State Historic Park. About 80% of the adobe brick is original, although most of the wood has been replaced. A part of the foundation for the deteriorated half is visible, and a small museum and other exhibits are on display. Locals refer to it as "Old Adobe."