Petaluma Adobe State Historic Park 
3325 Adobe Rd.
Petaluma, CA 94954
707-762-4871
http://www.parks.ca.gov/default.asp?page_id=474
State Park: Birding, Hike, History, Horse, Picnic, Walk
Was the main residence of Rancho Petaluma, the 66,000-acre agricultural empire that General Mariano Guadalupe Vallejo one of the most powerful men in the Mexican Province of California from 1834 to 1846. The general 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 old adobe ranch building, the largest private hacienda in California between 1834 and 1846, was the center of activity on one of the most prosperous private estates established during the Mexican period.