The California Shenandoah Valley AVA is an American Viticultural Area that includes portions of Amador County and El Dorado County, California, United States. The region was settled by non-indigenous peoples during the California Gold Rush in the nineteenth century, and settlers in the region began planting grapevines and producing wine soon thereafter. In the 1970s, Sutter Home Winery began bottling varietal Zinfandel wines made from Shenandoah Valley grapes, and in 1983 the region became a designated AVA. The most important grape variety in the region is Zinfandel.