Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. The Saddle Rock-Malibu AVA is an American Viticultural Area in Los Angeles County, California. The region was once part of the 200,000 acres (809 km2) Saddle Rock Ranch, created from the original Spanish Land Grant. The wine region is located high in the Santa Monica Mountains north, west, and south of the metropolitan area of Los Angeles. An American Viticultural Area is a designated wine grape-growing region in the United States distinguishable by geographic features, with boundaries defined by the Alcohol and Tobacco Tax and Trade Bureau (TTB), United States Department of the Treasury. The TTB defines AVAs at the request of wineries and other petitioners. There were 193 AVAs as of February, 2009. Prior to the installation of the AVA system, wine appellations of origin in the United States were designated based on state or county boundaries. All of these appellations were grandfathered into federal law and may appear on wine labels as designated places of origin, but these appellations are distinct from AVAs.